A method comprising receiving, at a receiver, a plurality of signals from at least one remote source and selecting at least one selected signal in the plurality of signals. The method determines, using the at least one selected signal, a position of the receiver and receives correction data for improving the position of the receiver to a sub-wavelength accuracy. The method further determines motion of the receiver, generates, from the at least one selected signal, a motion-compensated correlation signal based on the determined motion of the receiver and uses the motion-compensated correlation signal to either (1) select the at least one selected signal to be used to determine the position of the receiver, (2) correct at least one of motion sensor errors or clock errors, or (3) both (1) and (2). Embodiments include a positioning system for performing the method.
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/43 - Détermination de position utilisant les mesures de la phase de la porteuse, p. ex. le positionnement cinématiqueDétermination de position utilisant l'interférométrie à ligne de base longue ou courte
2.
METHOD AND APPARATUS FOR PERFORMING MOTION COMPENSATED RADIO SIGNAL PROCESSING WHEN A RECEIVING ANTENNA IS STATIONARY
A method and apparatus for determining position and/or time for user equipment using radio signals that are reflected from moving reflectors include receiving a plurality of reflected signals having different propagation paths, determining a motion of a moving reflector, generating a plurality of phasors sequences, where each phasor sequence represents a hypothesis based on reflector motion and a user equipment position estimate for each of the plurality of the received signals, compensating the received signals, a plurality of local signals or correlation results from correlating the received signals with the local signals using the plurality of phasor sequences to generate a plurality of compensated correlation results, identifying a preferred hypothesis in the plurality of hypotheses, for each received signal, that optimizes at least one correlation result in the plurality of compensated correlation results, and using the optimized at least one correlation result to determine a user equipment position time.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
3.
METHOD AND APPARATUS FOR ACQUIRING AN INITIAL POSITION FOR A STATIONARY VEHICLE USING A RADIO SIGNAL RECEIVER
A method and apparatus for computing an accurate position of a mobile device and transmitting the accurate position to a radio signal receiver located in a stationary vehicle to facilitate initialization of the radio signal receiver.
G01S 19/06 - Éléments coopérantsInteraction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données d'assistance utilisant une estimation initiale de la position du récepteur comme données d'assistance ou lors de la génération de données d'assistance
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
4.
METHOD AND APPARATUS FOR DETERMINING AT LEAST ONE CHARACTERISTIC OF A SIGNAL PROPAGATION PATH
A method, apparatus, and system for determining at least one characteristic of a signal propagation path between a transmitter and a receiver in a communication environment include determining a motion of an antenna of the receiver, compensating the received signals, a plurality of local signals or correlation results using a plurality of phasors sequences, where each phasor sequence represents a hypothesis, to generate a plurality of compensated correlation results, identifying a direction of arrival for the received signals using a determined preferred hypothesis that optimizes each correlation result, determining, based on the identified direction of arrival a propagation path for each of the plurality of received signals, and determining at least one characteristic of a propagation path for at least one of the plurality of received signals based on the identified direction of arrival of the propagation path and information regarding the communication environment of the receiver.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 3/02 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes radio
G01S 3/52 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée en utilisant une antenne réceptrice mobile ou paraissant mobile sur une trajectoire cyclique pour produire une variation de fréquence Doppler du signal reçu
A method, apparatus, and system for determining an accurate position and/or orientation of a radio signal receiver located in a stationary vehicle and having an antenna mounted on a moveable component of the vehicle include moving the moveable component of the vehicle while receiving radio signals from a plurality of transmitters using the antenna, performing a GNSS signal acquisition process resulting in a correlation result between a respective received radio signal and a corresponding local signal, determining motion of the antenna of the radio signal receiver, compensating a phase of at least one of the local signal, the plurality of received signals, or at least one correlation result based on the determined antenna motion to produce motion compensated correlation results, selecting specific received signals, based on the motion compensated correlation results, and determining a position and/or orientation of the receiver and of the vehicle using the selected, specific received signals.
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
6.
METHOD, APPARATUS AND SYSTEM FOR GENERATING SIGNAL CORRECTION DATA USING DISTRIBUTED RECEIVERS
A method, apparatus and system for generating and distributing signal correction data includes determining motion of an antenna connected to each of a plurality of GNSS receivers, performing motion compensated correlation of received radio signals using the motion to generate motion compensated correlation results, identifying radio signals that are LOS radio signals using the motion compensated correlation results, determining a respective position for each of the GNSS receivers using a respective LOS radio signal and the motion compensated correlation results, determining a measured pseudorange between each GNSS receiver and each of a plurality of GNSS satellites using the respective LOS radio signal and the motion compensated correlation results, for each of the GNSS receivers, determining an atmospheric delay experienced by the radio signals and determining respective correction data using the determined atmospheric delay to determine a correction for at least the respective positions of each of the GNSS receivers.
G01S 19/07 - Éléments coopérantsInteraction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p. ex. DGPS [GPS différentiel] ou corrections ionosphériques
7.
METHOD AND APPARATUS FOR GENERATING AND DISTRIBUTING RADIO SIGNAL CORRECTION DATA
A method and apparatus for generating and distributing signal correction data for use by GNSS receivers. In embodiments, a method for performing signal processing in a radio signal receiver and a moving antenna that moves about a known, fixed location, includes: receiving radio signals from a plurality of transmitters using the moving antenna, where the antenna is moving relative to the received radio signals; performing motion compensated correlation of the signals to generate motion compensated correlation results; determining a measured pseudorange from the receiver and each of the plurality of transmitters; determining a difference between the pseudorange and an expected pseudorange for each transmitter, where the difference represents an atmospheric delay experienced by the signals as the signals propagate from each transmitter to the receiver; and transmitting the delay to a correction data server to be used to generate correction data that is distributed to at least one GNSS receiver.
G01S 19/07 - Éléments coopérantsInteraction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p. ex. DGPS [GPS différentiel] ou corrections ionosphériques
8.
METHOD AND APPARATUS FOR INITIALIZING A RADIO SIGNAL RECEIVER
A method and apparatus for initializing a radio signal receiver is provided. In some embodiments, a method for initializing a radio signal receiver includes generating a plurality of motion hypotheses; receiving correlation peaks and satellite information; processing the plurality of motion hypotheses to group similar hypotheses; removing hypotheses using the correlation peaks and satellite information; and performing motion compensated correlation using the remaining hypothesis or hypotheses.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/37 - Détails de matériel ou de logiciel de la chaîne de traitement des signaux
G01S 19/49 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système l'autre système étant un système de position inertielle, p. ex. en hybridation lâche
9.
METHOD AND APPARATUS FOR PROCESSING OF RADIO SIGNALS IN A PARALLEL REFLECTOR ENVIRONMENT
A method and apparatus for processing radio signals while a receiver is traveling parallel to signal reflectors (e.g., buildings) is provided. In some embodiments, a method for performing signal processing in a radio signal receiver while the radio signal receiver is traveling through a parallel reflector environment, may include: receiving at least one radio signal from at least one transmitter; determining a motion of the radio signal receiver; performing, using the radio signal and the determined motion, motion compensated correlation in a direction of the at least one transmitter or a direction of a reflected signal to generate motion compensated correlation results; determining, from the motion compensated correlation results, a Doppler frequency of the at least one radio signal; adjusting at least one weighting of a navigation solution based upon the determined Doppler frequency; and executing the navigation solution.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
10.
METHOD AND APPARATUS FOR CLASSIFYING MOTION DATA USING MACHINE LEARNING
A method, apparatus, and system for classifying motion data using machine learning includes receiving unlabeled motion data, applying a machine learning model to the unlabeled motion data to determine a vector representation of the unlabeled motion data, the machine learning model having been trained to include a respective continuous probability distribution for a plurality of labeled motion classes, applying an out-of-domain (OOD) detector to determine a score for the vector representation of the unlabeled motion data for each of the plurality of labeled motion classes in the machine learning model, and determining a motion class for the received, unlabeled motion data based on the determined score.
A method and apparatus for improving radio signal reception includes measuring motion of a radio signal receiver (405), selecting at least one radio signal from received radio signals (406), determining a frequency rate hypothesis for the selected radio signal (408), and for each rate of the hypothesis, generating a complex correlation result (410), motion compensating the complex correlation result, the local signal or the selected at least one radio signal using the measured motion of the receiver to produce a motion compensated complex correlation result (412), and phase compensating the motion compensated complex correlation result to produce a phase compensated, correlation result (414). The method and apparatus further include generating a frequency power profile from the phase compensated correlation results for each rate (415), determining a correlation peak in the frequency power profile (418), determining a correction for a clock of the receiver using the correlation peak, and correcting the clock of the receiver using the determined correction (424).
A method and apparatus for signal processing in a radio signal receiver using a variable integration period or rate include receiving, at the radio signal receiver, radio signals from at least one transmitter, determining at least one operating characteristic of the environment in which the radio signal receiver is operating, determining at least one of an integration period or an integration rate for processing the received radio signals based on the determined at least one operating characteristic, performing motion compensated correlation on the received radio signals using the determined at least one of the integration period or the integration rate to generate motion compensated correlation results, and determining at least one of a position of the radio signal receiver, a direction of motion of the radio signal receiver, or an error of a clock of the radio signal receiver using the motion compensated correlation results.
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
17.
SYSTEM FOR DETERMINING A PHYSICAL METRIC SUCH AS POSITION
A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
A method, apparatus, and system for providing demand-based enhanced signal processing in a radio signal receiver include receiving, at the radio receiver, at least one radio signal from at least one transmitter, monitoring the received at least one radio signal to determine if enhanced signal processing is needed, if it is determined that enhanced signal processing is not needed, processing the received at least one radio signal using conventional radio signal processing techniques, if it is determined that enhanced signal processing is needed, performing at least a motion compensated correlation using at least one of the at least one received radio signals to generate motion compensated correlation results, and determining a position for the radio receiver using the motion compensated correlation results. In some instances, the motion compensated correlation technique includes a SUPERCORRELATION™ technique.
G01S 19/09 - Éléments coopérantsInteraction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant une capacité de traitement mise en œuvre normalement par le récepteur
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/39 - Détermination d'une solution de navigation au moyen des signaux émis par un système de positionnement satellitaire à radiophares le système de positionnement satellitaire à radiophares transmettant des messages horodatés, p. ex. GPS [Système de positionnement global], GLONASS [Système mondial de satellites de navigation] ou GALILEO
G01S 19/43 - Détermination de position utilisant les mesures de la phase de la porteuse, p. ex. le positionnement cinématiqueDétermination de position utilisant l'interférométrie à ligne de base longue ou courte
G01S 19/45 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire
24.
METHOD, APPARATUS AND SYSTEM FOR IMPROVING RADIO SIGNAL RECEPTION
A method, apparatus, and system for improved receiver reception by determining an offset in frequency reference produced by a local oscillator include receiving a plurality of signals from a plurality of remote sources and selectively populating a search space in frequency and rate of change of frequency space with joint power values (joint correlation results) calculated for the plurality of signals. The selective population is performed using gradient analysis and an assumed property of the joint power values in the search space to select coordinates Formula (I) in the search space for calculation.
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/40 - Correction de position, de vitesse ou d'attitude
A system is disclosed and comprises a mobile platform, an antenna configured to receive a signal from a remote source in a first direction, a movement mechanism mounted to the platform, wherein the antenna is mounted to the movement mechanism, the movement mechanism being configured to move the antenna relative to the platform, and a controller configured to: generate a local signal, determine a component of motion of the antenna in the first direction, correlate the local signal with the received signal to provide a correlation signal, and motion compensating at least one of the local signal, the signal from the remote source, and the correlation signal based on the determined motion of the antenna in the first direction.
H01Q 3/12 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne utilisant un mouvement mécanique relatif entre des éléments actifs primaires et des dispositifs secondaires des antennes ou systèmes d'antennes
H04B 7/04 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées
26.
METHOD OF ESTIMATING A METRIC OF INTEREST RELATED TO THE MOTION OF A BODY
There is disclosed a computer-implemented method performed in a tracking system for tracking the motion of a body, as a function of time, the method comprising: (a) during a first time period, obtaining first data related to the motion of a body from at least one primary positioning unit, wherein said at least one primary positioning unit is mounted on a first platform carried on the body, or wherein said at least one primary positioning unit is separate to the body, said primary positioning unit being operational during the first time period; (b) during the first time period, obtaining second data from one or more secondary sensors configured to make measurements from which position or movement may be determined, said one or more secondary sensors being mounted on one or more second platforms carried on the body; (c) generating first training data comprising the first data and second data; (d) during a second time period, obtaining third data from the one or more secondary sensors, and; (e) analysing the third data to estimate at least one first metric related to the motion of the body during the second time period using a first algorithm trained using the first training data. A tracking system for tracking the motion of a body, as a function of time, is also disclosed.
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
G01C 21/20 - Instruments pour effectuer des calculs de navigation
G01S 19/49 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système l'autre système étant un système de position inertielle, p. ex. en hybridation lâche
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
27.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
28.
METHOD, APPARATUS AND SYSTEM FOR DETECTING A DIFFRACTED RADIO SIGNAL
A method, apparatus and system for detecting a diffracted signal include receiving a signal at the receiver, providing a local signal, determining a motion of the receiver, correlating the received signal with the local signal to calculate a correlation signal, calculating at least one phase-compensated correlation signal by providing phase compensation of at least one of the local signal, the received signal and the correlation signal based on the determined motion of the receiver and at least one hypothesis for an angle of arrival of the signal, determining whether the received signal is a diffracted signal based on a model and at least one characteristic of the received signal, and performing an action to improve signal reception at the receiver based on a determination that the received signal is a diffracted signal.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
A method, apparatus, and system for three-dimensional mapping aided positioning of a receiver includes receiving at the receiver radio signals from a transmitters, determining, from the radio signals, an estimate of at least one of a receiver position or a time of reception of the radio signals using motion compensated correlation, evaluating the determined estimate of the at least one receiver position or the time of reception and information of the signal environment and properties of the received radio signals using a trained, augmented 3DMA neural network, and determining using the trained, augmented 3DMA neural network, a position of the receiver. The augmented 3DMA neural network is trained such that the position of the receiver can determined by matching at least one of learned signal environment information or learned motion compensation information with signal environment information or motion compensation information determined from the received radio signals.
G01S 19/40 - Correction de position, de vitesse ou d'attitude
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
A method, apparatus and system for performing signal acquisition in a radio signal receiver includes receiving, at an antenna of the radio signal receiver, a plurality of radio signals from at least one transmitter, determining motion of the antenna of the radio signal receiver, correlating at least one local signal with at least one received radio signal to produce at least one correlation result, compensating a phase of at least one of the local signal, the at least one received radio signal or the at least one correlation result based on the determined motion to produce at least one motion compensated correlation result, selecting at least one of the received radio signals based on the at least one motion compensated correlation result, and determining a final position of the radio signal receiver by using the selected received radio signals in a navigation solution.
A method, apparatus and system for performing rapid initialization of a receiver include applying an estimate of receiver position, time and radio signals received by the signal receiver to a neural network that is trained with signal environment signatures to generate a plurality of receiver direction of motion hypotheses, generating a plurality of phasor sequences each forming a phasor hypothesis comprising a signal phase representing one of the direction of motion hypotheses, correlating a local signal with at least one received signal to produce at least one correlation result, compensating a phase of at least one of the local signal, a received signal or at least one correlation result based on the plurality of phasor hypotheses, determining a preferred hypothesis in the plurality of hypotheses that optimizes the at least one correlation result, and improving reception of the receiver using the phase compensated correlation result optimized by the preferred hypothesis.
G01S 19/25 - Acquisition ou poursuite des signaux émis par le système faisant intervenir des données d'assistance reçues en provenance d'un élément coopérant, p. ex. un GPS assisté
32.
METHOD, APPARATUS AND SYSTEM FOR ENVIRONMENT MAPPING USING RADIO SIGNALS
A method, apparatus and system implement radio transmission from a transmitter for mapping an environment, which includes receiving a plurality of signals having a plurality of propagation paths from the transmitter (304), extracting from each signal, data representing a DoD, determining a transmitter location, determining a motion of at least one antenna of at least one receiver (306), generating a plurality of phasor sequences (308), determining a preferred hypothesis in a plurality of hypotheses for each received signal that optimizes a correlation result in a plurality of compensated correlation results (312), identifying a DoA for each of the plurality of received signals having a different propagation path using the determined hypothesis (314), determining a point of reflection from the DoA of each received signal, a receiver location, the transmitter location, and the DoD, and processing the points of reflection to map at least one reflection surface in the environment.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
A method is disclosed comprising: (a) receiving, at a receiver, a plurality of signals from a plurality of remote sources (S201); (b) providing a plurality of local signals using a frequency reference generated by a local oscillator; (c) determining a motion of the receiver (S203); (d) for each of the plurality of received signals: calculating a plurality of phasor sequences that are indicative of the phase evolution of the received signal due to the component of the determined motion of the receiver along a selected direction of arrival of the received signal, and calculating a phase-compensated correlation signal by providing phase compensation of at least one of the local signal, the received signal and a correlation signal using a phasor sequence; (e) generating a search space parameterized by Δf and Δf; (f) populating the search space (S209); and (g) selecting a preferred frequency offset as a frequency offset of the frequency reference based on a dataset (S213); wherein the method further comprises adjusting the search space (S211). A corresponding system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
A method is disclosed comprising: (a) receiving, at a receiver, a plurality of signals from a plurality of remote sources (S201); (b) providing a plurality of local signals using a frequency reference generated by a local oscillator; (c) determining a motion of the receiver (S203); (d) generating a search space parameterized by a hypothesised frequency offset, Δf, and a hypothesised frequency rate offset, Δf, of the frequency reference (S205); (e) populating the search space based on signal powers of a plurality of phase-compensated correlation signals corresponding to respective hypotheses of Δf and Δf (S209); and (f) selecting a preferred frequency offset as a frequency offset of the frequency reference based on the dataset (S213); wherein for each of the plurality of received signals used to populate the dataset, a plurality of phase-compensated correlations signals are calculated by: correlating the received signal with a corresponding one of the local signals to calculate a correlation signal; and calculating a phase-compensated correlation signal by providing phase compensation of at least one of the local signal, the received signal and the correlation signal using a phasor sequence. A corresponding system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
A method, apparatus, and system for performing navigation and tracking include obtaining motion data representing motion of a mobile device in a two-dimensional plane, inputting the motion data to a trained neural network, and using the neural network to calculate a navigation or tracking metric of the mobile device or of the body. The trained neural network includes a plurality of neurons arranged as an input layer configured to receive the motion data, an output layer configured to output the navigation or training metric, and one or more hidden layers. In each of the hidden layer(s), each neuron is configured to perform a non-linear activation function to generate a neuron output, the neuron activation including a set of inputs and weights to the respective neuron. Each neuron is configured to apply a rotational symmetry operation to the respective neuron activation that maximizes the respective neuron activation.
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
A method and apparatus for determining position and/or time for user equipment using radio signals that are reflected from moving reflectors include receiving a plurality of reflected signals having different propagation paths, determining a motion of a moving reflector, generating a plurality of phasors sequences, where each phasor sequence represents a hypothesis based on reflector motion and a user equipment position estimate for each of the plurality of the received signals, compensating the received signals, a plurality of local signals or correlation results from correlating the received signals with the local signals using the plurality of phasor sequences to generate a plurality of compensated correlation results, identifying a preferred hypothesis in the plurality of hypotheses, for each received signal, that optimizes at least one correlation result in the plurality of compensated correlation results, and using the optimized at least one correlation result to determine a user equipment position and/or time.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
37.
METHOD AND APPARATUS FOR GENERATING A PREDICTIVE MODEL
A method and apparatus for generating a predictive model include operating a radio signal receiving device while collecting data corresponding to at least one frequency-related parameter associated with a frequency source associated with the receiving device, at least one operational characteristic of the receiving device, and/or at least one environmental event associated with the receiving device, where the at least one frequency-related parameter changes with changes in the at least one operational characteristic and/or the at least one environmental event, and processing the data to generate a predictive model to be used to compensate for the changes in the at least one frequency-related parameter corresponding to the at least one operational characteristic and/or the at least one environmental event.
A method, apparatus, and system for determining at least one characteristic of a signal propagation path between a transmitter and a receiver in a communication environment include determining a motion of an antenna of the receiver, compensating the received signals, a plurality of local signals or correlation results using a plurality of phasors sequences, where each phasor sequence represents a hypothesis, to generate a plurality of compensated correlation results, identifying a direction of arrival for the received signals using a determined preferred hypothesis that optimizes each correlation result, determining, based on the identified direction of arrival a propagation path for each of the plurality of received signals, and determining at least one characteristic of a propagation path for at least one of the plurality of received signals based on the identified direction of arrival of the propagation path and information regarding the communication environment of the receiver.
G01S 3/02 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes radio
A method, apparatus, and system performed in a wireless communications system including a user equipment, UE, and a base station, BS, configured to provide one or more serving beam(s) to the UE include at the BS, providing one or more serving beam(s) from the BS to the UE, determining a movement of the UE, receiving, at the UE, an analysis signal from a remote source along a first direction, generating a local signal, generating a correlation signal by correlating the local signal with the received analysis signal, providing motion compensation of at least one of the local signal, the received analysis signal, and the correlation signal based on the determined movement of the UE, generating UE state data that comprise at least one of UE motion data, and UE environment data, and at the BS, selectively updating the serving beam(s) based on the UE state data.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04B 7/08 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station de réception
40.
METHOD, APPARATUS AND SYSTEM FOR PERFORMING POSITION LOCATION USING CELLULAR SIGNALS
A method, apparatus and system for determining a location of a receiver using cellular signals include determining a motion of a respective antenna of at least one receiver that received at least one cellular signal, using the determined antenna motion, performing motion compensated correlation on the received at least one cellular signal to generate at least one motion compensated correlation result, determining a direction of arrival for the received at least one cellular signal using the at least one motion compensated correlation result, and determining a location of the at least one receiver using the determined direction of arrival of the received at least one cellular signal and location information related to the at least one emitter from which the at least one cellular signal was received.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 5/10 - Position du récepteur obtenue par coordination de plusieurs lignes de position définies par des mesures de différence de parcours
41.
Method and apparatus for performing direction division multiple access
A method and apparatus for performing direction division multiple access. In some embodiments, the method includes: performing motion compensated correlation upon a received signal transmitted from a transceiver to generate at least one motion compensated correlation result; identifying a direction of arrival for the received signal using the at least one motion compensated correlation result; and selecting, using the direction of arrival of the received signal, to communicate with the transceiver.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
42.
METHOD AND APPARATUS FOR PERFORMING DIRECTION DIVISION MULTIPLE ACCESS
A method and apparatus for performing direction division multiple access. In some embodiments, the method includes: performing motion compensated correlation upon a received signal transmitted from a transceiver to generate at least one motion compensated correlation result; identifying a direction of arrival for the received signal using the at least one motion compensated correlation result; and selecting, using the direction of arrival of the received signal, to communicate with the transceiver.
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
G01S 3/02 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes radio
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
43.
METHOD AND APPARATUS FOR DETERMINING A FREQUENCY RELATED PARAMETER OF A FREQUENCY SOURCE USING PREDICTIVE CONTROL
A method, apparatus, and system for determining a frequency related parameter of a frequency source using predictive control includes receiving, at an antenna of the receiver, a plurality of signals from a plurality of remote source, generating motion compensated correlation results using a determined motion of the antenna of the receiver, the received plurality of signals, and a local signal derived from the local frequency source, using predictive control to predict the frequency related parameter of the local frequency source, phase compensating the motion compensated correlation results to produce phase compensated correlation results using a plurality of phasor sequences that are based on the predicted frequency related parameter of the local frequency source, and jointly analysing the phase compensated correlation results associated with the plurality of remote sources to determine a frequency offset of the local frequency source.
A method and apparatus for determining a location of a receiver using cellular signals. The method involves performing motion compensated correlation upon a plurality of received signals transmitted from at least one cellular signal base station transceiver to generate at least one motion compensated correlation result. The method involves identifying a direction of arrival for each received signal in the plurality of received signals using the at least one motion compensated correlation result. Finally, the method involves determining, from the direction of arrival of the plurality of received signals, a location of the receiver.
G01S 5/08 - Position d'un radiogoniomètre unique obtenue par détermination de la direction de plusieurs sources espacées d'emplacement connu
G01S 3/14 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
45.
Method and apparatus that uses radio transmissions for surface mapping
A method for mapping a surface using signals transmitted from a single transmitter comprises: receiving signals transmitted from the single transmitter, where each signal has a different propagation path; determining a motion of an antenna of the receiver; generating phasor sequences, where each phasor sequence represents a hypothesis based on antenna motion and a direction of arrival estimate for each received signal; compensating the received signals, local signals, or correlation results from correlating the received signals with the local signals using the phasor sequences based on the hypotheses to generate compensated correlation results; determining a preferred hypothesis in the hypotheses for each received signal that optimizes each correlation result; identifying a direction of arrival for each received signal using the determined hypothesis; determining a point of reflection from the direction of arrival of each received signal; and combining the points of reflection into one or more reflective surfaces.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
46.
METHOD AND APPARATUS THAT USES RADIO TRANSMISSIONS FOR SURFACE MAPPING
A method for mapping a surface using signals transmitted from a single transmitter is disclosed. The method comprises: a) receiving a plurality of signals transmitted from the single transmitter, where each of the plurality of signals has a different propagation path; b) determining a motion of an antenna of the receiver; c) generating a plurality of phasor sequences, where each phasor sequence represents a hypothesis based on antenna motion and a direction of arrival estimate for each of the plurality of the received signals; d) compensating the received signals, a plurality of local signals or correlation results from correlating the received signals with the local signals using the plurality of phasor sequences based on the plurality of hypotheses regarding the receiver motion and the direction of arrival to generate a plurality of compensated correlation results; e) determining a preferred hypothesis in the plurality of hypotheses for each received signal that optimizes each correlation result in the plurality of compensated correlation results; f) identifying a direction of arrival for each of the plurality of received signals using the determined hypothesis; g) determining a point of reflection from the direction of arrival of each received signal in the plurality of received signals; and h) combining the points of reflection into one or more reflective surfaces. A corresponding apparatus is also disclosed.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 5/06 - Position de source déterminée par coordination d'un ensemble de lignes de position définies par des mesures de différence de parcours
G01S 13/00 - Systèmes utilisant la réflexion ou la reradiation d'ondes radio, p. ex. systèmes radarSystèmes analogues utilisant la réflexion ou la reradiation d'ondes dont la nature ou la longueur d'onde sont sans importance ou non spécifiées
47.
METHOD AND APPARATUS FOR PROVIDING SELECTIVE PRIVACY IN A TRACKING SYSTEM
A user equipment (20) for use in a tracking system (1) is disclosed, comprising: a receiver (220) configured to receive a first signal (s4) from a first tracking transmitter (2) and a second signal from a tracking inhibitor (s2); an interface configured to communicate with a server (10); a positioning module (234) configured to establish a first location of the first tracking transmitter; and a controller (224) configured to determine whether the second signal has been received at the receiver; wherein, in response to determining that the second signal has not been received, the controller is configured to report the location of the tracking transmitter by sending a first report including the first location and an identifier of the tracking transmitter; and wherein, in response to determining that the second signal has been received, the controller is configured to preserve user privacy by not sending the first report.
A method and apparatus for determining a frequency related parameter of a frequency source. In some embodiments, the method includes receiving a plurality of signals from a plurality of remote sources; generating motion compensated correlation results using a determined receiver motion, the received signals, and a local signal derived from the local frequency source; phase compensating the motion compensated correlation results to produce phase compensated correlation results using a plurality of phasor sequences that represent frequency error of the local frequency source; and jointly analysing the phase compensated correlation results associated with the plurality of remote sources to determine a frequency related parameter of the local frequency source.
A method (300) which can be performed in a positioning system is disclosed and comprises providing a local frequency reference using a local oscillator; receiving a signal at a receiver from a remote source along a direction of arrival (S304); determining a movement of the receiver in a plurality of sequential time periods (S312); calculating a vector comprising a plurality of unique frequency offsets in the local frequency reference in the plurality of sequential time periods (S314); using the local frequency reference from the local oscillator to provide a local signal in the plurality of sequential time periods; correlating the local signal with the received signal using the vector to apply a correction and using phase compensation.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
50.
METHOD AND APPARATUS FOR DETERMINING A FREQUENCY RELATED PARAMETER OF A FREQUENCY SOURCE
A method is disclosed, comprising: providing a local frequency reference; receiving at least one signal (14, 16, 18), at a receiver, from at least one remote source (2, 4, 6, 8), along respective directions of arrival; determining a movement of the receiver; determining one or more operating conditions in a system performing the method; determining an initial estimated frequency offset in the local frequency reference based on the one or more operating conditions; using the local frequency reference to provide a local signal; providing a correlation signal by correlating the local signal with the received signal; and providing phase compensation based on the determined movement of the receiver along the respective direction of arrival to produce a phase compensated correlation signal; dynamically adjusting, based on the phase compensated correlation signal and the initial estimated frequency offset, a frequency offset value to determine a preferred estimated value for the frequency offset in the local frequency reference.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
51.
Method and apparatus for providing selective privacy in a tracking system
A method and apparatus configured to create a zone of privacy within which tracking signals, transmitted by a tracking device located within the privacy zone, cannot be used to identify a location of the tracking device.
A method and system for combining data obtained by sensors, having particular application in the field of navigation systems, are disclosed. The techniques provide significant improvement over state-of-the-art Markovian methods that use statistical noise filters such as Kalman filters to filter data by comparing instantaneous data with the corresponding instantaneous estimates from a model. In contrast, the techniques disclosed herein use multiple time periods of various lengths to process multiple sensor data streams, in order to combine sensor measurements with motion models at a given time epoch with greater confidence and accuracy than is possible with traditional “single epoch” methods. The techniques provide particular benefit when the first and/or second sensors are low-cost sensors (for example as seen in smart phones) which are typically of low quality and have large inherent biases.
G01C 21/00 - NavigationInstruments de navigation non prévus dans les groupes
G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système
G01C 22/00 - Mesure de la distance parcourue sur le sol par des véhicules, des personnes, des animaux ou autres corps solides en mouvement, p. ex. en utilisant des odomètres ou en utilisant des podomètres
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
53.
Method and apparatus for performing motion compensated signal processing
A method and apparatus for performing motion compensated signal processing without using traditional IMU data from a full complement of traditional IMU sensors. In some embodiments, the method may include: receiving, at a receiver, a first signal from a remote source in a first direction; providing a first local signal; determining, using first data, and without using data derived from an accelerometer, a movement of the receiver; providing a correlation signal by correlating the local signal with the received signal; providing motion compensation of at least one of the local signal, the received signal, and the correlation signal, based on the determined movement in the first direction to provide preferential gain for a signal received along the first direction and processing the received first signal based on the said correlation.
G01S 19/43 - Détermination de position utilisant les mesures de la phase de la porteuse, p. ex. le positionnement cinématiqueDétermination de position utilisant l'interférométrie à ligne de base longue ou courte
54.
METHOD AND APPARATUS THAT USES A TRANSMISSION FROM A SINGLE TRANSMITTER FOR RECEIVER POSITIONING
A method, apparatus and system for providing a position of a receiver using signals transmitted from a single transmitter include receiving a plurality of signals transmitted from the single transmitter, determining a motion of an antenna of the receiver, generating a plurality of phasors sequences, compensating the received signals, a plurality of local signals or correlation results from correlating the received signals with the local signals using the plurality of phasor sequences based on the plurality of hypotheses regarding the receiver motion and the direction of arrival to generate a plurality of compensated correlation results, determining a preferred hypothesis in the plurality of hypotheses for each received signal that optimizes each correlation result, identifying a direction of arrival for the plurality of received signals using the preferred hypothesis, and determining a position of the receiver using the direction of arrival of each received signal in the plurality of received signals.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 13/58 - Systèmes de détermination de la vitesse ou de la trajectoireSystèmes de détermination du sens d'un mouvement
G01S 3/02 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes radio
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
55.
METHOD AND APPARATUS FOR PERFORMING MOTION-COMPENSATED SIGNAL PROCESSING
A method for performing motion-compensated signal processing is described. The method comprises: receiving, at a receiver, a first signal from a remote source in a first direction; providing a first local signal; determining, using first data, and without using data derived from an accelerometer, a movement of the receiver; providing a correlation signal by correlating the local signal with the received signal; providing motion compensation of at least one of the local signal, the received signal, and the correlation signal, based on the determined movement in the first direction to provide preferential gain for a signal received along the first direction and processing the received first signal based on the said correlation. A system for performing motion-compensated signal processing is also described.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
A method for providing a position of a receiver using signals transmitted from a single transmitter is disclosed. The method comprises: a) receiving a plurality of signals transmitted from a single transmitter, where each of the plurality of signals has a different propagation path; b) determining a motion of an antenna of the receiver; c) generating a plurality of phasors sequences, where each phasor sequence represents a hypothesis based on antenna motion and a direction of arrival estimate for each of the plurality of the received signals; d) compensating the received signals, a plurality of local signals or correlation results from correlating the received signals with the local signals using the plurality of phasor sequences based on the plurality of hypotheses regarding the receiver motion and the direction of arrival to generate a plurality of compensated correlation results; e) determining a preferred hypothesis in the plurality of hypotheses for each received signal that optimizes each correlation result in the plurality of compensated correlation results; f) identifying a direction of arrival for the plurality of received signals using the determined hypothesis; and g) determining a position of the receiver from the direction of arrival of each received signal in the plurality of received signals. A corresponding apparatus is also disclosed.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 3/14 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée
A system is disclosed and comprises a mobile platform, an antenna configured to receive a signal from a remote source in a first direction, a movement mechanism mounted to the platform, wherein the antenna is mounted to the movement mechanism, the movement mechanism being configured to move the antenna relative to the platform, and a controller configured to: generate a local signal, determine a component of motion of the antenna in the first direction, correlate the local signal with the received signal to provide a correlation signal, and motion compensating at least one of the local signal, the signal from the remote source, and the correlation signal based on the determined motion of the antenna in the first direction.
H01Q 3/02 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne utilisant un mouvement mécanique de l'ensemble d'antenne ou du système d'antenne
H01Q 1/22 - SupportsMoyens de montage par association structurale avec d'autres équipements ou objets
A system is disclosed and comprises a mobile platform (113), an antenna (102) configured to receive a signal (14) from a remote source (2) in a first direction, a movement mechanism (114) mounted to the platform, wherein the antenna is mounted to the movement mechanism, the movement mechanism being configured to move the antenna relative to the platform, and a controller (108) configured to: generate a local signal, determine a component of motion of the antenna in the first direction, correlate the local signal with the received signal to provide a correlation signal, and motion compensating at least one of the local signal, the signal from the remote source, and the correlation signal based on the determined motion of the antenna in the first direction.
A method, apparatus, and system for determining locations of cellular emitters include receiving at least one signal from the cellular emitters at an antenna of at least one receiver, determining a motion of the antenna of the at least one receiver that received the at least one signal, using the determined antenna motion, performing motion compensated correlation upon the at least one received signal to generate at least one motion compensated correlation result, determining a direction of arrival for the at least one received signal using the at least one motion compensated correlation result, and determining a location of the cellular emitters using the direction of arrival of the at least one received signal and a known location of the at least one receiver. A geolocation map of the locations of the emitters of, for example, cell base station towers can be generated using determined emitter locations.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
60.
METHOD AND APPARATUS FOR PROVIDING SIGNAL INTELLIGENCE AND SECURITY
A method, apparatus and system for determining a legitimacy of a signal source for providing signal intelligence and security includes receiving a signal from at least one emitter at an antenna of at least one receiver, determining a motion of the antenna of the at least one receiver, performing motion compensated correlation on the received signal to generate at least one motion compensated correlation result, determining a direction of arrival for the received signal using the motion compensated correlation result, determining a location of the at least one emitter using the direction of arrival of the received signal, and determining the legitimacy for the at least one emitter based on the determined location of the at least one emitter and information regarding locations of legitimate emitters. Additionally, an action affecting the reception of signals from the emitter at the receiver can be performed based on the legitimacy of the emitter.
A method, apparatus, and computer program for obtaining location information for a remote source are disclosed. Motion-compensated correlation of a local signal with a signal received from a source at a receiver moving through the vicinity of the source is used to generate precise location information, for sources such as emitters in a cellular network.
G01S 3/14 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
62.
METHOD AND APPARATUS FOR PROVIDING SIGNAL INTELLIGENCE AND SECURITY
A method for providing signal intelligence and security by obtaining legitimacy information for a remote source is described. The method comprises: receiving, at a receiver, a signal from the remote source in a first direction; providing a local signal; determining a movement of the receiver; providing a correlation signal by correlating the local signal with the received signal; providing motion compensation of at least one of the local signal, the received signal, and the correlation signal, based on the determined movement in the first direction to provide preferential gain for a signal received along the first direction; identifying, based on the said correlation, a remote source vector corresponding to a portion of a propagation path of the received signal, the portion being coincident with the remote source; and generating the legitimacy information for the remote source in accordance with the remote source vector of the received signal. A system and a computer program product for providing signal intelligence and security are also described.
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
A method, performed in a wireless communication system, is disclosed. The method comprises the steps of: generating a first local signal; receiving, at a receiver, a first signal from a remote source; determining a movement of the receiver; generating a first correlation signal by correlating the first local signal with the received first signal; providing motion compensation of at least one of the first local signal, the received first signal, and the first correlation signal based on the determined movement of the receiver along a direction of interest to thereby generate a first motion compensated correlation signal; determining that the first signal has been received along the direction of interest, based on the first motion compensated correlation signal; following determining that the first signal has been received along the direction of interest, generating a second local signal, the second local signal having at least one parameter based on the first signal received along the direction of interest; receiving, at the receiver, a second signal along the direction of interest; and processing the received second signal using the second local signal in order to determine a metric of interest related to the receiver, and/or related to a communications link that includes the receiver. A wireless communication system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
Methods and systems including: generating a first local signal (LS); receiving, at a receiver, a first signal from a remote source; determining a receiver movement; generating a first correlation signal by correlating the first LS with the first signal; providing motion compensation of at least one of the first LS, the first signal, and the first correlation signal based on the receiver movement along a direction of interest (DOI) to generate a first correlation signal; determining that the first signal has been received along the DOI, based on the first correlation signal, generating a second LS having at least one parameter based on the first signal received along the DOI; receiving, at the receiver, a second signal along the DOI; and processing the received second signal using the second LS to determine a metric of interest related to the receiver, and/or to a communications link that includes the receiver.
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
65.
Method and apparatus for improving co-channel operation of independent radio systems
A method, apparatus and system for improving co-channel operation of simultaneously operating, independent radio signals. The method, apparatus and system receive at least two co-channel RF signals, perform motion compensated correlation upon at least one of the at least two co-channel RF signals, and determine the direction of arrival of the at least one of the at least two co-channel RF signals. In response to the direction of arrival determined for the at least one of the at least two co-channel RF signals, an action to perform to improve co-channel operation of the at least two co-channel RF signals at a subject receiver is determined.
H04B 7/08 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station de réception
H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
66.
METHOD AND APPARATUS FOR IMPROVING CO-CHANNEL OPERATION OF INDEPENDENT RADIO SYSTEMS
A method and apparatus for improving co-channel operation of simultaneously operating, independent radio systems. The method and apparatus receive at least one signal, perform motion compensated correlation upon the at least one signal, and determine the direction of arrival of the at least one signal. A response to the direction of arrival is implemented to improve co-channel operation of the radio systems.
A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
A method comprising receiving, at a receiver, a plurality of signals from at least one remote source and selecting at least one selected signal in the plurality of signals. The method determines, using the at least one selected signal, a position of the receiver and receives correction data for improving the position of the receiver to a sub-wavelength accuracy. The method further determines motion of the receiver, generates, from the at least one selected signal, a motion-compensated correlation signal based on the determined motion of the receiver and uses the motion-compensated correlation signal to either (1) select the at least one selected signal to be used to determine the position of the receiver, (2) correct at least one of motion sensor errors or clock errors, or (3) both (1) and (2). Embodiments include a positioning system for performing the method.
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/43 - Détermination de position utilisant les mesures de la phase de la porteuse, p. ex. le positionnement cinématiqueDétermination de position utilisant l'interférométrie à ligne de base longue ou courte
A method, performed in a positioning system, is disclosed. The method comprises: providing a local signal; receiving, at a receiver, a signal from a remote source in a first direction that is a straight line direction from the remote source to the receiver; measuring or assuming a movement of the receiver at a first rate; generating a motion-compensated correlation signal at a second rate that is lower than the first rate, wherein providing the motion-compensated correlation signal comprises correlating the local signal with the received signal and providing motion compensation of at least one of the local signal, the received signal, and the result of the correlation, based on the measured or assumed movement of the receiver in the first direction; obtaining, from the measured or assumed movement of the receiver, a first data set at the first rate that is indicative of the frequency shift or the change in the unambiguous phase of the received signal caused by the relative movement between the receiver and the remote source in the first direction; obtaining, from the motion- compensated correlation signal, a second data set at the second rate that is indicative of the frequency shift or the change in the unambiguous phase of the received signal caused by the relative movement between the receiver and the remote source in the first direction; and generating a processing output at a processing rate that is higher than the second rate based on the first data set and the second data set, whereby the processing output is indicative of the frequency shift or the change in the unambiguous phase of the received signal caused by the relative movement between the receiver and the remote source in the first direction. A corresponding position system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
70.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
71.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
72.
Method, system and computer program product for performing correlation in a positioning system
A method and apparatus for improving signal reception in a radio signal receiver is provided. The method comprises: receiving a signal from one or more remote sources; determining movement of the receiver; obtaining first and second phasor sequences indicative of the determined movement of the receiver in first and second directions; generating a third phasor sequence based on a weighted combination of the first and second phasor sequences in accordance with the first and second directions; and providing a correlation signal using the third phasor sequence, wherein providing the correlation signal comprises correlating a local signal with the received signal, and combining at least one of the local signal, received signal, and the result of the correlation with the third phasor sequence, such that a signal received along the second direction is suppressed relative to a signal received along the first direction. A corresponding positioning system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
73.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
74.
System for determining a physical metric such as position
A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
75.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
76.
Method and system for calibrating a system parameter
A method for performing in a positioning, navigation, tracking, frequency-measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase-compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
77.
A METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR PERFORMING CORRELATION IN A POSITIONING SYSTEM
A method performed in a positioning system is provided, The method comprises: (a) receiving, at a receiver, signal data from one or more remote sources; (b) measuring or assuming a movement of the receiver; (c) determining a first direction, wherein signals received at the receiver along the first direction are desired to be enhanced; (d) determining a second direction, wherein signals received at the receiver along the second direction are desired to be suppressed; (e) obtaining first and second phasor sequences indicative of the measured or assumed movement of the receiver in the first and second directions respectively, the first and second phasor sequences each comprising one or more phasors which include an amplitude and/or an angle; (f) generating a third phasor sequence based on a weighted combination of the first and second phasor sequences in accordance with the determined first and second directions; (g) providing a local signal; and (h) providing a correlation signal using the third phasor sequence, wherein providing the correlation signal comprises correlating the local signal with the received signal data, and combining at least one of the local signal, received signal data, and the result of the correlation with the third phasor sequence, such that a signal received along the second direction is suppressed relative to a signal received along the first direction. A corresponding positioning system is also disclosed.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
A method and system for combining data obtained by sensors, having particular application in the field of navigation systems, are disclosed. The techniques provide significant improvement over state-of-the-art Markovian methods that use statistical noise filters such as Kalman filters to filter data by comparing instantaneous data with the corresponding instantaneous estimates from a model. In contrast, the techniques disclosed herein use multiple time periods of various lengths to process multiple sensor data streams, in order to combine sensor measurements with motion models at a given time epoch with greater confidence and accuracy than is possible with traditional “single epoch” methods. The techniques provide particular benefit when the first and/or second sensors are low-cost sensors (for example as seen in smart phones) which are typically of low quality and have large inherent biases.
G01C 21/00 - NavigationInstruments de navigation non prévus dans les groupes
G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système
G01C 22/00 - Mesure de la distance parcourue sur le sol par des véhicules, des personnes, des animaux ou autres corps solides en mouvement, p. ex. en utilisant des odomètres ou en utilisant des podomètres
G01C 21/06 - NavigationInstruments de navigation non prévus dans les groupes par des moyens terrestres impliquant la mesure de l'angle de dériveNavigationInstruments de navigation non prévus dans les groupes par des moyens terrestres impliquant la correction de la dérive
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
79.
Method of estimating a metric of interest related to the motion of a body
There is disclosed a computer-implemented method performed in a tracking system for tracking the motion of a body, as a function of time, the method comprising: (a) during a first time period, obtaining first data related to the motion of a body from at least one primary positioning unit, wherein said at least one primary positioning unit is mounted on a first platform carried on the body, or wherein said at least one primary positioning unit is separate to the body, said primary positioning unit being operational during the first time period; (b) during the first time period, obtaining second data from one or more secondary sensors configured to make measurements from which position or movement may be determined, said one or more secondary sensors being mounted on one or more second platforms carried on the body; (c) generating first training data comprising the first data and second data; (d) during a second time period, obtaining third data from the one or more secondary sensors, and; (e) analysing the third data to estimate at least one first metric related to the motion of the body during the second time period using a first algorithm trained using the first training data. A tracking system for tracking the motion of a body, as a function of time, is also disclosed.
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
G01C 21/20 - Instruments pour effectuer des calculs de navigation
G01S 19/49 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système l'autre système étant un système de position inertielle, p. ex. en hybridation lâche
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
G06F 3/0481 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] fondées sur des propriétés spécifiques de l’objet d’interaction affiché ou sur un environnement basé sur les métaphores, p. ex. interaction avec des éléments du bureau telles les fenêtres ou les icônes, ou avec l’aide d’un curseur changeant de comportement ou d’aspect
80.
System for determining a physical metric such as position
A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
09 - Appareils et instruments scientifiques et électriques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments, namely, receivers for satellites, emergency locator beacons, gyroscopes, theodolites; Blank magnetic data carriers; Blank recordable optical discs; Blank compact discs, blank DVDs and other blank digital storage media; computers and computer peripheral devices; Downloadable computer software for processing navigational data; electronic devices and downloadable computer software for recording, organizing, transmitting, manipulating, reviewing, and receiving data, including data relating to the position or movement of an object or person; Downloadable computer application software for smartphones and mobile devices for processing navigational data, calculating a position fix, providing a navigation solution in the fields of navigation and motion tracking; portable electronic devices, including such devices embedded in smart watches, bracelets and wristbands that communicate data to personal digital assistants, smart phones, and personal computers through internet websites and other computer and electronic communication networks; electronic devices and downloadable computer software for navigation, guidance, tracking, targeting and map making; electronic devices and downloadable computer software for calculating via dead reckoning, the position, orientation, and velocity of a moving object or person; inertial and directional navigational systems comprised of electronic navigational instruments and downloadable and recorded computer software for positioning, navigation and timing; accelerometers, gyroscopes and downloadable and recorded computer software for controlling, monitoring, and recording data from accelerometers and gyroscopes; electronic sensors for detecting motion, rotation and magnetic fields, and downloadable and recorded software for controlling, monitoring, and recording data from such sensors; wearable electronic sensors for detecting, measuring and tracking activity and motion; personal electronic devices used to track fitness goals and statistics; electronic sensors for scientific use to be worn by a human to gather human biometric data; structural replacement parts and fittings specially adapted for all of the aforesaid Scientific and technological services, namely, research and design in the field of navigation systems and navigation technologies; Industrial engineering analysis services and industrial research services in the field of navigation systems and navigation technologies; Technological research in the field of computer hardware, computer software, and navigation technologies; Design and development of computer hardware and software; Providing online non-downloadable software for processing navigational data, providing a positioning and timing solution; Software as a service (SaaS) services featuring non-downloadable computer software for radio navigation, inertial navigation, transmitting and receiving navigational data; research, design and development of software for tracking motion and analysing data relating thereto; design and development of navigation systems, software and navigational apparatus; testing, analysis and monitoring of navigation systems for quality control purposes; Mapping services, namely, creation of navigation maps; Cloud computing featuring software for radio navigation, inertial navigation, transmitting and receiving navigational data; Providing temporary use non-downloadable software for accessing and using a cloud computing network; Software as a service (SaaS) services featuring software for use in designing, organizing and analysing data, metrics and reports in the areas of navigation and physical activity, health and fitness; Software as a service (SaaS) services featuring software that enables users to monitor and assess movement of objects and people, including themselves; Providing online non-downloadable software for providing personalized fitness training programs and services; Technical support services, namely, monitoring of the technological functions of databases and applications; Technological consulting regarding computer databases and applications; information, advisory and consultancy services in relation to all of the aforesaid services
82.
A METHOD OF ESTIMATING A METRIC OF INTEREST RELATED TO THE MOTION OF A BODY
There is disclosed a computer-implemented method performed in a tracking system for tracking the motion of a body, as a function of time, the method comprising: (a) during a first time period, obtaining first data related to the motion of a body from at least one primary positioning unit, wherein said at least one primary positioning unit is mounted on a first platform carried on the body, or wherein said at least one primary positioning unit is separate to the body, said primary positioning unit being operational during the first time period; (b) during the first time period, obtaining second data from one or more secondary sensors configured to make measurements from which position or movement may be determined, said one or more secondary sensors being mounted on one or more second platforms carried on the body; (c) generating first training data comprising the first data and second data; (d) during a second time period, obtaining third data from the one or more secondary sensors, and; (e) analysing the third data to estimate at least one first metric related to the motion of the body during the second time period using a first algorithm trained using the first training data. A tracking system for tracking the motion of a body, as a function of time, is also disclosed.
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
G01C 21/20 - Instruments pour effectuer des calculs de navigation
G01S 19/49 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système l'autre système étant un système de position inertielle, p. ex. en hybridation lâche
G05D 1/02 - Commande de la position ou du cap par référence à un système à deux dimensions
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
A method and system for combining data obtained by sensors, having particular application in the field of navigation systems, are disclosed. The techniques provide significant improvement over state-of-the-art Markovian methods that use statistical noise filters such as Kalman filters to filter data by comparing instantaneous data with the corresponding instantaneous estimates from a model. In contrast, the techniques disclosed herein use multiple time periods of various lengths to process multiple sensor data streams, in order to combine sensor measurements with motion models at a given time epoch with greater confidence and accuracy than is possible with traditional “single epoch” methods. The techniques provide particular benefit when the first and/or second sensors are low-cost sensors (for example as seen in smart phones) which are typically of low quality and have large inherent biases.
G01C 21/00 - NavigationInstruments de navigation non prévus dans les groupes
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système
G01C 22/00 - Mesure de la distance parcourue sur le sol par des véhicules, des personnes, des animaux ou autres corps solides en mouvement, p. ex. en utilisant des odomètres ou en utilisant des podomètres
A method of combining data from at least one sensor configured to make measurements from which position or movement may be determined. The method comprises: obtaining, in a first time period, first data from a first sensor mounted on a first platform (602); obtaining, in a second time period, second data from said first sensor and/or a second sensor mounted on the first platform or a second platform (603); determining the evolution of a metric of interest between first and second time instances, wherein at least one of the first and second time instances is within at least one of the first and second time periods, and wherein the evolution of the metric of interest is constrained by at least one of the first data, second data and a motion model of the first and/or second platform (604).
G01S 19/48 - Détermination de position en combinant ou en commutant entre les solutions de position dérivées du système de positionnement par satellite à radiophares et les solutions de position dérivées d'un autre système
G01C 21/12 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime
G01C 21/28 - NavigationInstruments de navigation non prévus dans les groupes spécialement adaptés pour la navigation dans un réseau routier avec corrélation de données de plusieurs instruments de navigation
85.
A METHOD AND SYSTEM FOR CALIBRATING A SYSTEM PARAMETER
A method for performing in a positioning, navigation, tracking, frequency- measuring, or timing system is provided. The method comprises: providing first and second estimates of at least one system parameter during a first time period, wherein the at least one system parameter has a true value and/or true evolution over time during the first time period; providing a local signal; receiving, at a receiver, a signal from a remote source; providing a correlation signal by correlating the local signal with the received signal; providing amplitude and/or phase compensation of at least one of the local signal, the received signal and the correlation signal based on each of the first and second estimates so as to provide first and second amplitude-compensated and/or phase-compensated correlation signals corresponding to the first and second estimates of the at least one system parameter during the first time period, and; determining which of the first and second estimates is nearer the true value and/or true evolution over time of the at least one system parameter during the first time period, based on a comparison between the first and second amplitude-compensated and/or phase- compensated correlation signals. A computer readable medium and system are also disclosed.
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
86.
SYSTEM FOR DETERMINING A PHYSICAL METRIC SUCH AS POSITION
A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
87.
Method, apparatus, computer program, chip set, or data structure for correlating a digital signal and a correlation code
A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
G01S 3/06 - Moyens pour accroître la directivité effective, p. ex. en combinant des signaux ayant des caractéristiques de directivité différemment orientées ou en affinant la forme d'onde enveloppe du signal provenant d'une antenne directionnelle rotative ou oscillante
88.
METHOD AND SYSTEM FOR CORRECTING THE FREQUENCY OR PHASE OF A LOCAL SIGNAL GENERATED USING A LOCAL OSCILLATOR
A positioning device (4) is disclosed comprising at least one antenna (14, 16) for receiving ranging signals, such as GNSS signals. The device comprises a local oscillator (18) for providing a local frequency or phase reference and an inertial sensor (22) for measuring a movement of the device. A processor (36) is provided for performing calculations. The device can receive a first reference signal at a known or predictable frequency or phase. A local oscillator offset determination module (26) is provided to calculate an offset to the received frequency or the received phase based on the movement of the receiver in the direction of the first reference source. A local signal generator (28) can then use the local frequency or phase reference from the local oscillator (18), and the offset calculated by the local oscillator offset determination module (26), to provide a local signal using a local signal generator (28). The local signal can be correlated against a received ranging signal for use in positioning calculations performed by a positioning calculator (34).
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/25 - Acquisition ou poursuite des signaux émis par le système faisant intervenir des données d'assistance reçues en provenance d'un élément coopérant, p. ex. un GPS assisté
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 19/29 - Acquisition ou poursuite des signaux émis par le système lié à la porteuse
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/31 - Acquisition ou poursuite d'autres signaux en vue du positionnement
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01C 21/26 - NavigationInstruments de navigation non prévus dans les groupes spécialement adaptés pour la navigation dans un réseau routier
89.
Method and system for correcting the frequency or phase of a local signal generated using a local oscillator
A positioning device (4) is disclosed comprising at least one antenna (14, 16) for receiving ranging signals, such as GNSS signals. The device comprises a local oscillator (18) for providing a local frequency or phase reference and an inertial sensor (22) for measuring a movement of the device. A processor (36) is provided for performing calculations. The device can receive a first reference signal at a known or predictable frequency or phase. A local oscillator offset determination module (26) is provided to calculate an offset to the received frequency or the received phase based on the movement of the receiver in the direction of the first reference source. A local signal generator (28) can then use the local frequency or phase reference from the local oscillator (18), and the offset calculated by the local oscillator offset determination module (26), to provide a local signal using a local signal generator (28). The local signal can be correlated against a received ranging signal for use in positioning calculations performed by a positioning calculator (34).
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/05 - Éléments coopérantsInteraction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données d'assistance
09 - Appareils et instruments scientifiques et électriques
14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
39 - Services de transport, emballage et entreposage; organisation de voyages
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Blank magnetic data carriers, magnetic data carriers pre-recorded with data relating to the position, orientation, velocity or movement of an object or person; recording discs, namely pre-recorded video discs, video recordings and video tapes featuring data relating to the position, orientation, velocity or movement of an object or person; digital media, namely, pre-recorded video cassettes, digital video discs, digital versatile discs, downloadable audio and video recordings, dvds, and high definition digital discs featuring data relating to the position, orientation, velocity or movement of an object or person; computers and computer peripheral devices; electronic devices and software for recording, organising, transmitting, manipulating, reviewing, and receiving data, including data relating to the position or movement of an object or person; electronic devices and software for recording, organising, transmitting, manipulating, reviewing, and receiving data, including data relating to the position or movement of an object or person, namely, augmented reality goggles, headsets, helmets and headphones; portable electronic devices, including smartwatches, bracelets and wristbands that communicate data to personal digital assistants, smart phones, and personal computers through internet websites and other computer and electronic communication networks, namely, wearable activity trackers; accelerometers, gyroscopes and software therefor; wearable activity and motion trackers; personal electronic devices used to track fitness goals and statistics, namely, wearable activity trackers; wearable computers in the nature of smartwatches, namely, watches with navigation features and apparatus; jewelry with navigation features and apparatus, namely, wearable activity trackers, all for use in the fields of navigation and motion tracking; parts and fittings for all of the aforesaid Precious metals and their alloys; jewellery; precious and semi-precious stones; bracelets; pendants; horological and chronometric instruments; watches; timepieces; watch straps; watch bands Air, land and marine navigation services; GPS navigation services; information, advisory and consultancy services in relation to all of the aforesaid services Scientific research and design in the fields of navigation, motion tracking and physical activity; research, design and development of computer hardware and software; providing online non-downloadable software for recording, organizing, transmitting, manipulating, reviewing and receiving data, including data relating to the position, orientation, velocity or movement of an object or person; software as a service (SaaS) services featuring software for recording, organizing, transmitting, manipulating, reviewing and receiving data, including data relating to the position, orientation, velocity or movement of an object or person; research, design and development of software for tracking motion and analysing data relating thereto; design and development of navigation systems, software and apparatus; testing, analysis and monitoring of navigation systems; creation of navigation maps, namely, cartography and mapping services and signal fingerprint maps; cloud computing featuring software for use in recording, organizing, transmitting, manipulating, reviewing and receiving data, including data relating to the position, orientation, velocity or movement of an object or person; providing temporary use non-downloadable software for accessing and using a cloud computing network; software as a service (SaaS) featuring software for use in designing, organizing and analyzing data, metrics and reports in the areas of navigation and physical activity, health and fitness; software as a service (SaaS) featuring software that enables users to monitor and assess movement of objects and people, including themselves; providing non-downloadable software for providing personalized fitness training programs and services; support and consultation services for databases and applications, namely, computer technical support services, 24/7 service desk or help desk services for IT infrastructure, operating systems, database systems, and web applications, installation, administration and troubleshooting of web and database applications and technical consulting in the fields of software design, development and maintenance; information, advisory and consultancy services in relation to all of the aforesaid services
91.
Method, apparatus, computer program, chip set, or data structure for correlating a digital signal and a correlation code
A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.
A method, apparatus, computer program, and data structure relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.
H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs
G01S 19/23 - Test, contrôle, correction ou étalonnage d'un élément récepteur
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
94.
A METHOD, APPARATUS, COMPUTER PROGRAM, CHIP SET, OR DATA STRUCTURE FOR CORRELATING A DIGITAL SIGNAL AND A CORRELATION CODE
A method, apparatus, computer program, chip set, or data structure for correlating a digital signal and a correlation code. A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.
G01S 19/26 - Acquisition ou poursuite des signaux émis par le système faisant intervenir une mesure par capteur pour faciliter l'acquisition ou la poursuite
G01S 19/30 - Acquisition ou poursuite des signaux émis par le système lié au code
G01S 19/47 - Détermination de position en combinant les mesures des signaux provenant du système de positionnement satellitaire à radiophares avec une mesure supplémentaire la mesure supplémentaire étant une mesure inertielle, p. ex. en hybridation serrée
