Systems and methods for optically aligning a transmitted beam with a received beam are provided herein. In some examples, a received beam is divided into a plurality of receive beamlets. The plurality of receive beamlets are coherently combined into a first optical beam. A second optical beam is coherently divided into a plurality of transmit beamlets forming a transmitted beam. The plurality of receive beamlets are used to determine a direction of the received beam. Phases of the receive beamlets are adaptively adjusted to maximize intensity of the first optical beam. Phases of the transmit beamlets are adaptively adjusted to steer the transmitted beam in a direction opposite to the direction of the received beam.
Two-way time transfer and ranging that measures and compensates for Doppler shifts is provided herein. A first endpoint transmits a request message initializing a dopplerField (DF). Relay node(s) moving relative to the first endpoint receive the request message, measure ingress and egress frequency ratios, increment DF by a difference between these ratios, and transmit the request message containing the incremented DF. A second endpoint receives the request message containing the incremented DF, and generates a reply message containing the incremented DF. The relay node(s) receive the reply message, measure ingress and egress frequency ratios, increment the incremented DF by a difference between these ratios, and transmit the reply message containing the incremented DF. The first endpoint receives the reply message containing the incremented DF, and uses it to calculate a range-rate of components in the mobile network relative to the first endpoint.
A nozzle manifold assembly (NMA) for a refractive imaging lens (RIL) includes a nozzle manifold (“manifold”) and a nozzle being part of the NMA. For example, the NMA and the RIL may be used in constructing fluid inspection and analysis instruments like RIL based thin film viscometers (RIL-TFVs). The manifold is configured to accept gas and/or liquid supply to form a jet, and configured to mount to the nozzle. The manifold may include a plurality of sensors configured to measure and/or control one or more properties of the NMA, the RIL, and/or the jet. The NMA also includes a gas supply connected to, and supplying gas through, the manifold to form the jet.
G01F 1/50 - Moyens de correction ou de compensation
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement
G01N 11/08 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau à travers un passage étroit, p. ex. un tube, une ouverture en mesurant la pression nécessaire à la production d'un écoulement connu
Nozzle Optical Manifold (NOM) includes a tube, which includes an optical beam transmitted down the center of the tube. Simultaneously, NOM measures, with a fiber optic film thickness measurement beam, at the center of the tube. Tube has a gas jet emitted from a nozzle that impinges on the surface of the substrate that has a thin film. The thickness of the thin film is reduced in thickness as the gas jet impinges thereon. It should be appreciated that, depending on the embodiment, any fluid that impinges on the surface of the thin film may be used.
G01N 11/04 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement en mesurant l'écoulement du matériau à travers un passage étroit, p. ex. un tube, une ouverture
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement
An array lattice for a low-density array includes a plurality of antenna elements. Each pair of the plurality of antenna elements are spaced such that each pair of the plurality of antenna elements have different spacing. Furthermore, each pair of the plurality of antenna elements has a grating lobe steered to a different angle while a main beam is the only beam that is coherently combined by each pair of the plurality of antenna elements. The array lattice results in grating lobe rejection that is directly proportional to the number of antenna elements.
A motor configured to transition from generating thrust in an axial direction to generating thrust in a radial direction. The motor comprises an annular vane set configured to produce torque in an axial direction when propellant flows through a nozzle. The motor also includes an ablative cap, which includes a timing hole for generating thrust in a radial direction, transitioning from producing torque to generating thrust.
B64G 1/40 - Aménagements ou adaptations des systèmes de propulsion
F02K 1/00 - Ensembles fonctionnels caractérisés par la forme ou la disposition de la tubulure de jet ou de la tuyèreTubulures de jet ou tuyères particulières à cet effet
A computer-implement method and apparatus for performing an angles-only initial orbit determination includes specifying input data to an algorithm, and determining a bounded region in a range-range space of candidate orbital solutions. The computer-implement method and apparatus also includes implementing a grid to a finite region of the range-range space, and computing Keplerian orbital properties on the grid. The computer-implement method and apparatus further includes evaluating quality of fit over angle-angle measurements to identify one or more candidate solutions, and polishing each of the one or more identified candidate solutions. The computer-implement method and apparatus also includes evaluating range-range covariance and state covariance for each of the one or more identified candidate solutions, and clustering the one or more identified candidate solutions into distinct groups based on the range-range covariance.
B64G 3/00 - Observation ou poursuite des véhicules astronautiques
G01B 11/26 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des angles ou des cônesDispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour tester l'alignement des axes
A multi-octave antenna element with a multi-octave frequency range simultaneously with a wide FOV. The multi-octave antenna element may be used in an array with other antenna elements, and may operate across with a wide element beamwidth in the 3 GHz to 11 GHz Ultra-Wideband (UW) frequency spectra designated by the Federal Communications Commission (FCC) and the International Telecommunication Union (ITU) for unlicensed, low power, communication. The antenna is scalable to any other 3:1 frequency band desired.
A waveform analysis and vulnerability assessment (WAVE) tool is disclosed that can analyze the characteristics and vulnerabilities of waveforms. The WAVE tool may identify issues in waveforms prior to their implementation in a transmit device or building the back-end processing to receive the waveform at a ground station. The WAVE tool may quantify waveform vulnerabilities, address which vulnerabilities a particular waveform has, and enable the user to modify the waveform design to optimize its performance against threats prior to implementation. Additionally, the WAVE tool may save time and money since new waveforms can be vetted against the tool before implementation. Data from waveforms can be analyzed against a plurality of metrics and scores can be generated providing a quantitative assessment of waveform performance.
Disclosed are example embodiments of a power system. The power system includes a half-bridge circuit. The half-bridge circuit includes a voltage input and at least one voltage output. The power system also includes an isolation interface, coupled to the half-bridge circuit. The power system includes control circuitry, coupled to the half-bridge circuit through the isolation interface, wherein the half-bridge circuit is configurable, and wherein the voltage input and the at least one voltage output of the half-bridge circuit are isolated from the control circuitry by the isolation interface.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
11.
Two-Way Time Transfer and Ranging Using a Communication Link
Some examples estimate time-varying range and clock offset between first and second transceivers that are moving relative to one another. The first transceiver transmits a first stream of symbols at a first succession of times according to a first clock, and receives from the second transceiver a second stream of symbols transmitted at a second succession of times according to a second clock. The first transceiver estimates arrival times and delays of symbols of the received second stream of symbols, and uses them to calculate first and second values describing a relationship between the estimated arrival times and delays of symbols. The first transceiver receives from the second transceiver third and fourth values describing a relationship between estimated arrival times and delays of symbols of the first stream of symbols. The first transceiver estimates the time-varying range and time-varying clock offset using the first, second, third, and fourth values.
G01S 13/46 - Détermination indirecte des données relatives à la position
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
A coating may include a self-assembled monolayer (SAM) of an organic molecule including a polar head group and a hydrophobic tail group. The polar head group is configured to attach to an underlying metal or ceramic surface. The SAM is configured to disintegrate upon exposure to high-energy radiation without reacting with the underlying surface.
G02B 1/18 - Revêtements pour garder des surfaces optiques propres, p. ex. films hydrophobes ou photocatalytiques
C03C 17/30 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement par des matières organiques avec des composés contenant du silicium
C03C 17/32 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement par des matières organiques avec des résines synthétiques ou naturelles
C03C 17/42 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement avec au moins deux revêtements ayant des compositions différentes un revêtement au moins étant une substance organique et un revêtement au moins étant un non-métal
A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing. The GPS receiver includes an analog RF subsystem and a digital subsystem and software module. The analog radio frequency (RF) subsystem is configured to acquire a BOC signal from a GPS satellite and converts the BOC signal to a based-banded signal. The digital subsystem and software module is configured to generate another signal and a local replica signal of the other signal to improve code tracking loop performance of the GPS receiver.
G01S 19/24 - Acquisition ou poursuite des signaux émis par le système
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
14.
ANALYZING CHIRPED WAVEFORMS IN REAL TIME USING PHOTONIC FRACTIONAL FOURIER TRANSFORMS
Analyzing chirped waveforms in real time using photonic fractional Fourier transforms (FrFTs) is disclosed. Photonic signal processing, where mathematical operations are carried out by imprinting a signal onto a laser beam either temporally or spatially and propagating the signal through a series of optical elements that mimic the desired operation, can overcome the N2 log N computational limitations of FrFTs with current techniques. This enables real time analysis using currently available computing and electronics technologies.
Acquiring and illuminating a cooperative target with a laser beam from a remote source is disclosed. The process may be used for cooperative target tracking where the source/target are a ground station, an aircraft, UAV, drone, satellite, spacecraft, combinations thereof, etc. A laser beam can be rapidly and accurately pointed by an emitter source using a laser pointing system, such as a gimbal or other laser pointing device, for example. A differential GPS on the cooperative target detects its position and periodically sends this information either directly or indirectly to the laser emitter source. The cooperative target may also determine its attitude. The emitter source uses this information to keep the cooperative target illuminated with the laser beam. The system may be used for detection and tracking of atmospheric differential absorptions to detect, track, and mitigate atmospheric releases of global warming gases and toxic industrial chemicals, communication, surveying, lidar, etc.
Intelligent optimization of mission planning and execution for spacecraft through intelligent analysis of mission objectives and payload operation is disclosed. Values for mission objectives, payload operation, and/or vehicle conditions may be defined during given time periods, including variable values for repeat operations or other factors. These values may then be used through a vehicle/mission simulation agent to optimize the mission plan through maximizing the mission score according to the values. The simulation agent may identify possible mission plans based on vehicle capability, and then score the mission plan based on the total objective score.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
G05D 1/10 - Commande de la position ou du cap dans les trois dimensions simultanément
Performing freehand scanning imaging includes transforming a single spatial location with nonuniform input data using NDFT for one spatial location to a singular spectral estimation. Performing freehand scanning imaging also includes translating the singular spectral estimation to zl, wherein zl is a common value of z for which to later recombine data for layer l, and where l begins at zero. Performing freehand scanning imaging further includes performing Inverse Spatial Fourier Transform on the translated spectrum to produce a translated data in a x- and y-spatial domain at z=zl. Performing freehand scanning imaging also includes outputting 3D translated data to an N-dimensional regularization from all measured locations, where all measured locations are regularized data resulting from a combined sum of all measured contributions, and outputting the regularized data to a SAFT algorithm to produce images layer-by-layer, whereby the process is repeated for subsequent layers layer-by-layer.
G01S 13/90 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la cartographie ou la représentation utilisant des techniques d'antenne synthétique
G01N 29/06 - Visualisation de l'intérieur, p. ex. microscopie acoustique
G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe
18.
Independently moving space vehicles configured to deploy and position a space structure
Independently moving deployment and positioning space vehicles that are configured to deploy and/or position structures are disclosed. The deployment and positioning vehicles work together to deploy and/or maintain the position/shape of a space structure. The deployment and positioning vehicles may include one or more thrusters, an attitude determination and control system (ADCS), a precision vehicle-to-vehicle location determination system, processing circuitry, etc. Two or more deployment and positioning vehicles are configured to coordinate the deployment and/or positioning of the space structure themselves or in concert with the other deployment and positioning vehicles in the deployment and positioning vehicle network, as well as achieve precision positioning.
A dynamic flex circuit includes a plurality of hole sets arranged along the dynamic flexible circuit. The dynamic flex circuit also includes a plurality of actuator wires coupled to the dynamic flexible circuit by way of intertwining each of the plurality of actuator wires through each hole set in the plurality of hole sets arrange along the dynamic flexible circuit. Each of the plurality of actuator wires are configured to impart a motion onto the dynamic flexible circuit depending on the amount of heat applied to each of the plurality of actuator wires.
Ellipsoidal array antennas that include repeated, modular unit cells are disclosed. The ellipsoidal array antennas may be wide band array antennas with bandwidths exceeding one octave that are capable of handling high radio frequency (RF) power with high polarization purity and low-cost manufacturing for arrays with high element counts. The number of unit cells is given by (Element_Rows+1)*Element_Columns for single polarized arrays. For dual polarized arrays, the number of unit cells is given by (Element_Rows+1)*(Element_Columns+1).
Physics packages including atomic or molecular vapors and sub-wavelength grating (SWG) waveguides and/or radio frequency (RF) waveguides are provided herein. In some examples, a physics package for interacting with atoms or molecules in a vapor includes a substrate, and a cell sealed to the substrate and storing the vapor. A SWG waveguide may be disposed on the substrate and within the cell. The SWG waveguide may include a plurality of grating segments that are spaced apart from one another and define a gap within the SWG waveguide. The vapor may be located at least within the gap. A first optical coupler couples light into the SWG waveguide such that the light propagates through the vapor located within the gap and interacts with the atoms or molecules in the vapor located within the gap. A second optical coupler receives light from the SWG waveguide.
H03L 7/26 - Commande automatique de fréquence ou de phaseSynchronisation utilisant comme référence de fréquence les niveaux d'énergie de molécules, d'atomes ou de particules subatomiques
22.
FEEDBACK LOOP COMBINING AUGMENTED REALITY AND VIRTUAL REALITY TO FACILITATE INTERACTIONS IN THE VIRTUAL WORLD AND THE PHYSICAL WORLD
Combining augmented reality (AR), virtual reality (VR), and photogrammetry to facilitate interactions with the physical world is disclosed. Images may be collected through various means (e.g., images taken by drones, ground-based photography, satellite imaging, etc.) and used to construct a three-dimensional (3D) model representation of the real world. This virtual environment can then be experienced by users in either a computing system (e.g., a desktop computer, laptop computer, smart phone, tablet, etc.) or a VR interface (e.g., a headset). The users can create various annotations, such as voice recordings, images, text, etc., and place these annotations in the virtual 3D model of the real world. These annotations are linked to the physical world via a coordinate system. AR “explorers” and VR users can then interact with one another via geographically aligned AR and VR models.
G06T 19/20 - Édition d'images tridimensionnelles [3D], p. ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
G01C 21/20 - Instruments pour effectuer des calculs de navigation
G06F 3/04815 - Interaction s’effectuant dans un environnement basé sur des métaphores ou des objets avec un affichage tridimensionnel, p. ex. modification du point de vue de l’utilisateur par rapport à l’environnement ou l’objet
G06F 3/0482 - Interaction avec des listes d’éléments sélectionnables, p. ex. des menus
23.
Polarization-aided image contrast enhancement with rotating polarization element and control software
Polarization-aided image contrast enhancement is disclosed. A rotatable polarizing element (e.g., a linear polarizer, waveplate and static polarization analyzer, etc.) may be inserted in front of an imaging camera (e.g., between the optics and camera of a telescope) to suppress a significant amount of polarized background sky brightness due to sunlight scattered by aerosols and gas particles in the sky and enhance imaging contrast of the field. This may be accomplished by installing a linear polarizer into a motorized rotation stage. As the polarizer rotates in the stage, transmitted sky brightness will vary sinusoidally with polarizer orientation. At any point in the sky and at any time, there will exist a polarizer orientation that minimizes transmitted sky intensity and maximizes contrast in the image.
G02B 26/06 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la phase de la lumière
G02B 23/02 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée comprenant des prismes ou des miroirs
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
G02B 27/28 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour polariser
A method for fabricating self-healing glass includes processing a water-based or water-containing oxide material for fabrication of self-healing glass. The method includes performing a thermal annealing process on the material, and manufacturing the self-healing glass from the thermal annealed material.
Evaluating structural capability of materials under axisymmetric thermomechanical loading includes placing a test material between an upper fixture and a lower fixture. A plurality of bolts arranged around the upper fixture and the lower fixture. The plurality of bolts are configured to apply a preload around the circumference of the upper fixture and the lower fixture. The upper fixture and the lower fixture includes an opening facilitating a heat load to be applied to the test material.
A patterned dark mirror coating is developed and fabricated for a custom spectrometer. By combining the photolithography process with a custom double-sided dark mirror coating integrated with a commercial infrared (IR) filter substrate, a multifunctional optical device is fabricated. The lithographic patterning of a dark mirror allows a single device to transmit light in a desired direction and absorb light everywhere else.
G03F 7/16 - Procédés de couchageAppareillages à cet effet
G03F 7/00 - Production par voie photomécanique, p. ex. photolithographique, de surfaces texturées, p. ex. surfaces impriméesMatériaux à cet effet, p. ex. comportant des photoréservesAppareillages spécialement adaptés à cet effet
Navigation systems and methods for a position, navigation, and timing (PNT) solution of one or more vehicles. Operations of the system and the method can include simulating, by a processor, a set of observables that a receiver of the one or more vehicles observes in a truth state; simulating, by the processor, addition of interference to the set of observables to generate a simulated set of corrupted observables; and simulating, by a processor, the PNT solution, comprising applying a receiver model to the simulated set of corrupted observables, the receiver model being configured to emulate how the receiver of the responds to the one or more vehicles simulated set of corrupted observables.
A method for stiffening space stiffening material on a structure in space includes deploying a structure located in a payload of a vehicle, wherein the structure is composed of the space stiffening material. The method also includes orienting the space stiffening material towards the ultraviolet (UV) light emanating from the sun in order to increase the strength and rigidity of the space stiffening material.
An isotope power source configured to act as a vehicle includes a plurality of radioisotope power sources encased around one or more elements therein to form a tile-shaped spacecraft.
Low stress and tailorable stress adhesives for bonding of sensitive components and a process for using the same are disclosed. The residual curing stress is tailorable based on adherends and with material properties that minimize environmentally induced thermal and hygroscopic distortions. Degraded performance of sensitive optical assemblies may be reduced or eliminated during bonding processes due to residual stress formation of adhesives. The adhesives are characterized by a second mechanism of stress formation other than the tensile stress from shrinkage during curing. Specifically, the adhesive is characterized by a cure gradient through its thickness, causing diffusion of uncured monomer into the more highly crosslinked region. This diffusion causes a compressive stress to form and offset the tensile cure shrinkage stress. The relative amounts of shrinkage and swelling that occur can be tailored to control residual stress formation, and ultimately, to generate a zero-stress bonding adhesive.
A portable gamma ray computed topography (CT) device configured to capture images includes a projector, a collimator, and a detector. The projector includes an isotope encapsulated within a depleted uranium, and the collimator is affixed to the projector eliminating use of a guide tube. The apparatus also includes a crank cable affixed to the isotope, and is configured to extend the isotope out of projector and into the collimator. The apparatus further includes a detector configured to capture multiple shots on order of hundreds of shots to create a three-dimensional (3D) reconstruction from infield gamma ray images.
G01T 1/29 - Mesure effectuée sur des faisceaux de radiations, p. ex. sur la position ou la section du faisceauMesure de la distribution spatiale de radiations
G21F 5/04 - Moyens pour commander l'exposition, p. ex. la durée, la dimension de l'ouverture
An apparatus for detecting leaks in a battery includes a plurality of cells, each which include a pair of conductive leads bracketing a polymer seal, and a wireless measurement and communication chip (“chip”) configured to perform capacitive measurement, showing a change in capacitance when bridged by ionically conductive species or when a wick is suffused with an electrolyte.
G01M 3/16 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique
33.
System and method for timing recovery in high bandwidth communications
Systems and methods for extracting and identifying timing information from wireless signals can include a signal receiver configured to receive a communications signal; a finite impulse response (FIR) filter coupled to the signal receiver and configured to identify a set of transitions in the communications signal; an absolute value operation module coupled to the FIR filter and configured to detect energy in each of the set of transitions within the communications signal; and a comb filter coupled to the absolute value operation module and configured to combine the detected energy in each of the set of transitions within the communications signal. Exemplary systems can also include a cyclic accumulator coupled to the comb filter and a signal processor.
H04L 27/14 - Circuits de démodulationCircuits récepteurs
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04L 7/02 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière
H04L 27/16 - Dispositifs de régulation de fréquence
H04L 27/22 - Circuits de démodulationCircuits récepteurs
34.
Turnkey power system with flexible control of configurable power stage
Disclosed are example embodiments of a power system. The power system includes a half-bridge circuit. The half-bridge circuit includes a voltage input and at least one voltage output. The power system also includes an isolation interface, coupled to the half-bridge circuit. The power system includes control circuitry, coupled to the half-bridge circuit through the isolation interface, wherein the half-bridge circuit is configurable, and wherein the voltage input and the at least one voltage output of the half-bridge circuit are isolated from the control circuitry by the isolation interface.
H02P 1/00 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques
H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
35.
MACHINE LEARNING MODEL TRAINING USING FEATURE SPACE ANALYSIS
Systems and methods are provided for using results of feature space analysis during the training of machine learning models to improve the training process and the resulting trained model.
Systems and methods are provided for generating supplemental or updated machine learning models based on analysis of feature space data observed at inference time using an existing machine learning model.
An open socket joint configured to prevent zinc creep includes a retaining mesh that sits on a lip of an outer shell casing of the open socket joint. The retaining mesh is configured to prevent zinc within the open socket joint to extrude.
F16G 11/04 - Moyens pour attacher les câbles ou les cordes l'un à l'autre ou à d'autres objetsChapeaux ou manchons à fixer sur les câbles ou les cordes avec action de serrage, p. ex. par pinces de friction du type bague et virole
38.
Monitoring self-discharge in operating battery cells
Monitoring self-discharge in operating battery cells (i.e., actively charging or discharging) is disclosed. Cell voltage data over time is used to detect cell-to-cell charge voltage imbalance in a battery while battery cells are at their peak charge voltage. Resistors across each cell are switched on or off according to the average charge voltage imbalance. Actual resistor on-times are used as input to train a neural network in real time. The neural network learns the resistor duty cycle needed by each battery cell to precisely balance its self-discharge losses. If the self-discharge changes, the neural network retrains itself as the new data arrives. The neural network may include a Long Short-Term Memory (LSTM) network for each cell in the battery, which can learn the relative self-discharge rate of the respective cell.
G01R 31/396 - Acquisition ou traitement de données pour le test ou la surveillance d’éléments particuliers ou de groupes particuliers d’éléments dans une batterie
G01R 31/367 - Logiciels à cet effet, p. ex. pour le test des batteries en utilisant une modélisation ou des tables de correspondance
G01R 31/3835 - Dispositions pour la surveillance de variables des batteries ou des accumulateurs, p. ex. état de charge ne faisant intervenir que des mesures de tension
G06N 3/0442 - Réseaux récurrents, p. ex. réseaux de Hopfield caractérisés par la présence de mémoire ou de portes, p. ex. mémoire longue à court terme [LSTM] ou unités récurrentes à porte [GRU]
An apparatus that measures elapsed time in digital systems with multiple clocks includes a vernier reference (VREF) configured to generate a reference counter signal with a numeric output and two reference clock signals. The apparatus also includes a plurality of synchronizer VPLLs configured to receive the reference counter signal and the two reference clock signals and generate a plurality of synchronized counters, each synchronized counter being co-linear with the reference counter and operating in a respective target clock domain.
H03L 7/07 - Commande automatique de fréquence ou de phaseSynchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase utilisant plusieurs boucles, p. ex. pour la génération d'un signal d'horloge redondant
H03L 7/087 - Détails de la boucle verrouillée en phase concernant principalement l'agencement de détection de phase ou de fréquence, y compris le filtrage ou l'amplification de son signal de sortie utilisant au moins deux détecteurs de phase ou un détecteur de fréquence et de phase dans la boucle
H04B 17/13 - SurveillanceTests d’émetteurs pour l’étalonnage d’amplificateurs de puissance, p. ex. de gain ou de non-linéarité
H04L 7/033 - Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière en utilisant les transitions du signal reçu pour commander la phase de moyens générateurs du signal de synchronisation, p. ex. en utilisant une boucle verrouillée en phase
40.
Quality control evaluation method of cyanate ester matrix resin material within CFRP composite concerning localized hydrolytic degradation
Evaluating the quality of cyanate ester matrix resin material includes inserting a small piece of a deposit extracted from a composite laminate into an epoxy for cross-sectional analysis, and performing cross-sectional polishing on the small piece of the deposit. Evaluating the quality of the cyanate ester matrix resin material also includes performing resolution imaging to study a plurality of plies in the small piece of the deposit to evaluate each ply without causing destruction to each of the plurality of plies.
G01N 23/2251 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en mesurant l'émission secondaire de matériaux en utilisant des microsondes électroniques ou ioniques en utilisant des faisceaux d’électrons incidents, p. ex. la microscopie électronique à balayage [SEM]
Zoned anti-glint filtering includes identifying one or more pixels impacted or predicted to be impacted by glint in a captured image, and adjusting the one or more pixels to capture an image with those zones dimmed to mitigate impacts from glint. Knowledge of the applied anti-glint filter may be used in post-processing to reconstruct an image without adverse impacts from glint or the anti-glint filtering process.
An ablative thruster includes a nozzle configured to control a flow of thrust from the satellite. The ablative thruster also includes an ablative surface inside of the nozzle, configured to deflect the thrust at a predefined angle. The ablative surface is configured to ablate-away, leaving un-deflected thrust for a majority of the burn.
F02K 9/90 - Moteurs-fusées, c.-à-d. ensembles fonctionnels portant à la fois le combustible et son oxydantLeur commande caractérisés par la commande de la poussée ou du vecteur poussée utilisant des déflecteurs
A dynamic flex circuit includes a plurality of hole sets arranged along the dynamic flexible circuit. The dynamic flex circuit also includes a plurality of actuator wires coupled to the dynamic flexible circuit by way of intertwining each of the plurality of actuator wires through each hole set in the plurality of hole sets arrange along the dynamic flexible circuit. Each of the plurality of actuator wires are configured to impart a motion onto the dynamic flexible circuit depending on the amount of heat applied to each of the plurality of actuator wires.
Systems and methods are provided for adjusting confidence models that are used to generate augmented prediction output or to otherwise determine a degree of confidence in a prediction output. A machine learning model may be trained to generate prediction output (e.g., classification output or regression output), and a confidence model of training data support for predictions of the machine learning model may be generated. The data modeled by the confidence model may initially be the feature space representation of the training data. The confidence model may be a malleable confidence model in the sense that when the machine learning model is used by an inference service to evaluate operational data, the prediction output and/or operational data input may be used to adjust the confidence model based on observed changes and data.
Analyzing electro-optical imagery from a telescope observing one or more satellites includes capturing one or more images of a plurality of stars and the one or more satellites, and sequentially or randomly selecting each one of a plurality of diagonal lines of pixels in the one or more images. The plurality of diagonal lines of pixels represent one of the plurality of stars in the one or more images. Additionally, a moving average filter is applied to the selected one of the plurality of diagonal lines of pixels to find a location of one of the plurality of start on an x- and y-axis coordinate. Furthermore, the location of the one of the plurality of stars is provided in the one or more captured images to be cross referenced with angular coordinates and radiometric quantities in stellar catalogs.
G01S 7/481 - Caractéristiques de structure, p. ex. agencements d'éléments optiques
G01S 3/786 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée utilisant le réglage d'une orientation des caractéristiques de directivité d'un détecteur ou d'un système de détecteurs afin d'obtenir une valeur désirée du signal provenant de ce détecteur ou de ce système de détecteurs la valeur désirée étant maintenue automatiquement
Energy storage radiators are disclosed. The structure of the radiator may be used as a battery to store and release energy, as well as serving to regulate the temperature of that battery and the associated device or vehicle. The structure may be configured to provide mechanical support, an enclosure, an attachment point, or an extension for a vehicle or a device. By designing an energy storage radiator to function as a battery, a separate battery superstructure may not be required. Also, the heat to be radiated away can be used to keep the battery in its operating temperature range. This may provide mass reduction of the radiator structures or materials, as well as make those materials multifunctional and replace material elsewhere with respect to conventional systems.
Scalable radioisotope power tiles that can provide heat, electrical power, or both, are disclosed. Unlike conventional radioisotope thermoelectric generator (RTG) designs, the scalable radioisotope power tiles do not necessarily seek to minimize the RTG surface area. Rather, a planar design may be used to maximize the radiative surface to increase the temperature difference (ΔT) and increase system heat to electricity conversion efficiency where electrical power generation is desired. In addition, such a planar design can be one-sided or two-sided, allowing for flexibility in design. For instance, such power tiles may be deployed in a material like a solar sail, on the surface of a vehicle, in terrestrial systems, etc.
Self-determined shot geometry for open-configuration portable x-ray computed tomography (CT) includes capturing one or more x-ray shot images into a computing system, and estimating an unknown constellation model and one or more shot geometries. It also includes reconstructing a volume image from the one or more captured shot images and the one or more geometries using computed tomography.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 7/73 - Détermination de la position ou de l'orientation des objets ou des caméras utilisant des procédés basés sur les caractéristiques
A method for self-determination of shot geometry for use in open-configuration portable x-ray computed tomography (CT) includes inputting one or more x-ray shot images into a computing system. The method also include determining, by the computing system, one or more shot geometries from the one or more inputted x-ray shot images. The method further includes reconstructing, by the computing system, a volume image from the one or more inputted x-ray shot images and the one or more shot geometries. The method also includes outputting, by the computing system, a reconstructed volume image.
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
G06T 7/80 - Analyse des images capturées pour déterminer les paramètres de caméra intrinsèques ou extrinsèques, c.-à-d. étalonnage de caméra
A propellant management device (PMD) may reduce or prevent liquid propellant from entering a thruster manifold (TM) or gas venting manifold (GVM) while allowing propellant vapor and/or gas to pass through the PMD to allow for thrust or venting.
An expanding battery mandrel includes a cylindrical cell, a cylindrical mandrel having a slit along a length of the cylindrical mandrel, and a plurality of electrolytes wrapped around the cylindrical cell. The expanding battery mandrel also includes an expander screwed inside of or inserted within the cylindrical mandrel, forcing the cylindrical mandrel to uniformly expand in a radial direction and forcing the plurality of electrolytes to compress against each other and to press against an inner wall of the cylindrical cell.
A framework for interfacing a blockchain-based ground system with flight software and satellite orbit analysis applications is disclosed. A blockchain application (e.g., a web application) for secure management of satellites has three components—a client, a server, and a private and permissioned-based blockchain network (e.g., a Hyperledger Fabric™ network). The client allows users to configure satellite parameters. The server facilitates the communication between the client and the blockchain. The blockchain allows the secure management and storage of satellite configuration data on blockchain ledgers. For instance, SECCON provides a blockchain-based framework that can be a potential candidate for next generation ground system applications. SECCON allows secure configuration management of satellites, and has been interfaced with OpenSatKit, a software tool kit that can interact with the cFS. SECCON also provides secure communication of orbital data between trusted organizations and allows the satellite configuration parameters to be exported and viewed in SOAP.
Cell-based space systems with nested-ring structures that interlock and can change configuration to support a mission are disclosed. The cells may self-assemble into a larger structure to carry out a mission. Multiple rotatable rings may be included in a cell, with a payload/control section in the center. The rings may provide power and/or data to trams that move about the rails. Trams may interlock with other cells, carry sensors or other devices, etc. Cells may be stowed in a cell stack that is deployable. Such cell-based systems may have various applications in space, on Earth, other celestial bodies, and underwater.
Fractional Fourier Transform (FrFT)-based spectrum analyzers and spectrum analysis techniques are disclosed. Rather than using the standard Fast Fourier Transform (FFT), the FrFT may be used to view the signal content contained in a particular bandwidth. Usage of the FrFT in place of the frequency or time domain allows viewing of the signal in different dimensions, where “spectral” features of interest, or signal content, may appear where they were not visible in these domains before. This may allow signals to be identified and viewed in any domain within the continuous time-frequency plane, and may significantly enhance the ability to detect and extract signals that were previously hidden under interference and/or noise, provide or enhance the ability to extract signals from a congested environment, and enable operation in a signal-dense environment.
An apparatus for detecting leaks in a battery includes a plurality of cells, each which include a pair of conductive leads bracketing a polymer seal, and a wireless measurement and communication chip (“chip”) configured to perform capacitive measurement, showing a change in capacitance when bridged by ionically conductive species or when a wick is suffused with an electrolyte.
G01M 3/16 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique
A non-contact angular motion measuring device includes a mirror configured to move or rotate about a pivot axis. The device also includes a curved target, circularly symmetric around an axis normal to the mirror. The device further includes at least one pair of sensors configured to emit fields towards the curved target rather than the mirror.
G01B 7/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer des angles ou des cônesDispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour tester l'alignement des axes
G01D 5/14 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens électriques ou magnétiques influençant la valeur d'un courant ou d'une tension
Embodiments of the present invention include modular solar power cells, arrays, and power management systems for use in satellite systems and constellations. In one embodiment, a solar cell module can include: a module substrate including a high-emissivity side and a mounting side; a power management circuit mounted to the mounting side of the module substrate; a battery arranged adjacent to the power management circuit; a solar cell substrate arranged adjacent the battery and including an embedded battery heater; and a solar cell mounted directly to the solar cell substrate and connected to the battery.
H02J 7/35 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon avec des cellules sensibles à la lumière
B64G 1/10 - Satellites artificielsSystèmes de tels satellitesVéhicules interplanétaires
B64G 1/42 - Aménagements ou adaptations des systèmes fournissant l'énergie
B64G 1/44 - Aménagements ou adaptations des systèmes fournissant l'énergie utilisant des radiations, p. ex. panneaux solaires déployables
H01L 31/02 - Dispositifs à semi-conducteurs sensibles aux rayons infrarouges, à la lumière, au rayonnement électromagnétique d'ondes plus courtes, ou au rayonnement corpusculaire, et spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement e; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives; Leurs détails - Détails
H01L 31/0475 - Matrices de cellules PV formées par des cellules à configuration planaire, p.ex. répétitives, sur un substrat semi-conducteur unique; Micro-matrices de cellules PV
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise and preparing related reports and technical documentation; providing information on the tactics and techniques employed by adversaries to exploit or compromise, operate within, and cause impacts to space systems, spacecraft, launch systems, ground to space systems, and related infrastructures and computer networks in the aerospace industry; providing a website featuring technology that allows users to describe the actions an adversary might take while operating within aerospace systems and environments for the purpose of characterizing and describing post-compromise adversary behavior; providing information and advice to assist in network defense and to assist in prioritizing infrastructure and system defense by detailing compromise, pre-, and post-compromise tactics, techniques, and procedures used by adversaries to execute their objectives; security consultation, namely, providing a collection of information on the tactics and techniques employed by cyber adversaries; system security consultation, namely, providing a collection of information characterizing the post-compromise activities of cyber adversaries to describe what might occur during an intrusion after an adversary has acquired access to an infrastructure, systems, and computer network; providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise for use in technologies and applications including mobile devices, enterprise networks, embedded devices, network devices, cloud systems, control systems, and the connections between these systems and preparing related reports and technical documentation; providing a collection of information defining and categorizing commonly identified activities that contribute to space systems, spacecraft, launch systems, and ground to space systems compromise
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise and preparing related reports and technical documentation; providing information on the tactics and techniques employed by adversaries to exploit or compromise, operate within, and cause impacts to space systems, spacecraft, launch systems, ground to space systems, and related infrastructures and computer networks in the aerospace industry; providing a website featuring technology that allows users to describe the actions an adversary might take while operating within aerospace systems and environments for the purpose of characterizing and describing post-compromise adversary behavior; providing information and advice to assist in network defense and to assist in prioritizing infrastructure and system defense by detailing compromise, pre-, and post-compromise tactics, techniques, and procedures used by adversaries to execute their objectives; security consultation, namely, providing a collection of information on the tactics and techniques employed by cyber adversaries; system security consultation, namely, providing a collection of information characterizing the post-compromise activities of cyber adversaries to describe what might occur during an intrusion after an adversary has acquired access to an infrastructure, systems, and computer network; providing information on the topic of cyber intrusions, cyber adversaries, cyber threat intelligence, cyber security, system compromise, and network compromise for use in technologies and applications including mobile devices, enterprise networks, embedded devices, network devices, cloud systems, control systems, and the connections between these systems and preparing related reports and technical documentation; providing a collection of information defining and categorizing commonly identified activities that contribute to space systems, spacecraft, launch systems, and ground to space systems compromise
Embodiments of the present invention include a two-stage blending filter that blends the measurements from two angular sensors to form a single superior high bandwidth measurement for improved disturbance rejection in a satellite systems for increased accuracy in satellite pointing, orientation, and attitude control. Embodiments of the present invention can include a satellite system including a first sensor including or defining a first measurement bandwidth; a first filter connected to the first sensor; a second sensor including or defining a second measurement bandwidth; a second filter connected to the second sensor; and a third filter connected to the first filter and the second filter. The third filter blend the first signal and the second signal into a third signal; and transmit the third signal to a flight controller configured to adjust an orientation of the satellite, a satellite subsystem, or both, relative to a target in response to the third signal.
An autonomous compliance controlled generic mooring station includes a pair of mooring systems connected to each other. The pair of mooring systems includes a pair of mooring interfaces, allowing the pair of mooring systems to change between a mooring state and a release state. One of the pair of mooring interfaces includes an electropermanent magnet and the other one of the pair of mooring interfaces includes a ferromagnetic plate. The electropermanent magnet and the ferromagnetic plate are configured to connect the pair of mooring systems together.
Provided herein are circuits and methods for processing samples of a received in-phase and quadrature (I/Q) domain signal that includes a desired signal and an interference signal that spectrally overlaps the desired signal. In the I/Q domain, a first contribution to the interference signal is removed from the samples using a first algorithm to generate first processed signal samples. Amplitudes and phases of the first processed signal samples are obtained. In an amplitude domain, a second contribution to the interference signal is removed from the amplitudes of the first processed signal samples using a second algorithm to generate second processed signal samples. A signal quality metric of the second processed signal samples is obtained. Based on the signal quality metric of the second processed signal samples, one or more parameters of the first or second algorithm are adjusted to improve the signal quality metric of the second processed signal samples.
H04B 1/00 - Détails des systèmes de transmission, non couverts par l'un des groupes Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
H04B 1/10 - Dispositifs associés au récepteur pour limiter ou supprimer le bruit et les interférences
H04B 1/7107 - Élimination soustractive des interférences
A multi-purpose in-situ contamination sampler includes an inner frame surrounded by a plurality of removable or attachable pieces, each of which include of a single witness surface configured to collect both particulate and molecular contamination within an environment on a payload or a spacecraft.
Cell-based systems may interlock in a reconfigurable configuration to support a mission. Space systems, for example, of a relatively large size may be assembled using an ensemble of individual “cells”, which are individual space vehicles. The cells may be held together via magnets, electromagnets, mechanical interlocks, etc. The topology or shape of the joined cells may be altered by cells hopping, rotating, or “rolling” along the joint ensemble. The cells may be multifunctional, mass producible units. Rotation of cell faces, or of components within cells, may change the functionality of the cell. The cell maybe collapsible for stowage or during launch.
A reconfigurable QKD transceiver capable of transmitting and/or receiving qubits using a single optical hardware platform. This reconfigurable QKD transceiver enables various link scenarios specially for LEO-ground network, where the satellites have limited engagement time with a ground station. The reconfigurable QKD transceiver may reduce the optics SWaP by 50 percent and may allow for new mission scenarios that were otherwise not feasible with a transmitter only architecture or receiver only architecture.
Solid rocket motors are provided herein. In certain embodiments, a solid rocket motor includes a housing containing thin layers of fuel and thin layers of an inert oxidizer, separated by a thin nonconductive layer. The housing has a nozzle at the end for gas release and channeling. Prior to use, the inert oxidizer is activated by electrochemical oxidation which can generate an active oxidizer and additional fuel. Ignition of the oxidizer and fuel can be triggered whereby the contents of the housing can ignite, generating hot gasses to be channeled out through the nozzle to generate thrust. Replacing current state solid rocket motors with embodiments described herein can improve cost, safety and increase capability. The disclosed embodiments can be safe to transport, store, and handle. Additionally, there can be no moving parts unlike hybrid or liquid rocket motors.
F02K 9/24 - Chargement des moteurs-fusées en propergols solidesProcédés ou appareils spécialement adaptés pour façonner les charges de propergols solides
67.
Periodically varying frequencies for assured time transfer
A system and method for periodically varying a center frequency for assured time transfer in order to securely transfer a signal from a source to a receiver, without adding additional encryption to signal.
G04R 20/02 - Mise à l’heure à partir de l’information horaire portée dans le signal radio de façon explicite ou implicite le signal radio étant envoyé par un satellite de positionnement, p. ex. GPS
68.
Integrated electro-magnetically preloaded kinematic joint for on-orbit assembly of modular space vehicles
A payload-bus kinematic interface system includes one or more kinematic devices. Each kinematic device includes a first contacting surface and a second contacting surface. The first contacting surface kinematically interfaces with the second contacting surface, passing loads or forces to the second contacting surface.
Processes for rapidly and accurately measuring the coefficient of moisture expansion for materials, such as adhesives, are disclosed. A replication technique may be used to manufacture highly flat and smooth adhesive samples. Moisture is introduced in a controlled humidity atmosphere, distortion is monitored with an accurate laser interferometer (e.g., ˜1 nanometer (nm) accuracy), and measurements are correlated with moisture content change. Such processes decrease sample size by three orders of magnitude as compared with conventional techniques and have a smaller adhesive mass requirement, which enables measurement of expensive microelectronic adhesives that were previously cost-prohibitive to measure. Also, thinner films allow CME measurements of ultraviolet (UV) cured adhesives that would otherwise have depth of penetration issues. Furthermore, saturation occurs quickly, allowing pre-stabilization at room temperature, which enabled parametric studies as a function of processing or cure state. Additionally, testing occurs within hours versus months, enabling short lead times for root-cause investigations.
An apparatus includes a satellite in the form of a plate having a thickness being smaller than a width of the satellite. The apparatus also includes a plurality of contact points distributed on a face of the satellite, allowing for one or more additional satellites to be stacked upon the satellite.
An apparatus for monitoring health of one or more cells in a battery includes a health monitoring system configured to measure voltage on one or more cells when a waveform is injected into the one or more cells. The waveform is measured at an end of a pulse for each current.
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
G01R 31/396 - Acquisition ou traitement de données pour le test ou la surveillance d’éléments particuliers ou de groupes particuliers d’éléments dans une batterie
G01R 31/371 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge avec indication à distance, p. ex. sur des chargeurs séparés
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
A self-regulating battery may generate a basis state for one or more modules using one or more system inputs. The system inputs comprise current, voltage, and battery degradation. The battery generates a family of weighted forecasts for future bus demands using usage and performance based weights. The battery generates one or more plans to support demand from the battery using the weighted forecasts. The battery scores the one or more plans based on efficiency of power extraction from the battery, and combines the scored one or more plans with an updated SoH value based on induced degradation from a usage plan. The battery generates the combined scored for each of the one or more plans, and transmits one of the combined scored to the battery management unit for execution.
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
73.
Embedded antennas in integrated circuits, and methods of making and using the same
Embedded antennas in integrated circuits, and methods of making and using the same, are provided herein. An integrated circuit within a semiconductor die may include a control circuit; an antenna configured to wirelessly receive a control signal at a predefined frequency; and an interconnect configured to provide the received control signal from the antenna to the control circuit. The control circuit may be configured to control a function of the integrated circuit responsive to the received control signal.
A method for automating system identification includes performing a system identification experiment, and performing a system identifying processing by fitting a model to data from the system identification experiment. The method also includes performing model reduction to generate a model numerically suitable for controller synthesis by removing inconsequential states that cause controller optimization methods to fail. The method further includes performing control synthesis using the generated model or reduced models, including disturbance spectrum estimates, to generate a candidate controller design to be used during system operation. The method also includes checking for controller robustness using the identified model to ensure stability of the system while maximizing closed-loop bandwidth and performance.
G05B 13/04 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques impliquant l'usage de modèles ou de simulateurs
Systems and methods are provided for performing multi-objective optimizations with a relatively large number of objectives to which optimization is to be performed. The objectives of the optimization problem may be partitioned to two or more subsets (e.g., overlapping or non-overlapping subsets) of objectives, and partial optimization(s) may be performed using a subset or combination of subsets of the objectives. One or more of the partial optimizations may use one or more pareto-optimized chromosomes from a prior partial optimization. A final full optimization may be performed according to all of the objectives of the optimization problem and may use one or more chromosomes of any preceding partial optimization as a starting point for finding a final solution to the optimization problem. Any variety of processes may be employed to mitigate archive explosion that may be associated with relatively large objective sets.
G06N 3/126 - Algorithmes évolutionnaires, p. ex. algorithmes génétiques ou programmation génétique
G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
76.
Waveform analysis and vulnerability assessment (WAVE) tool
A waveform analysis and vulnerability assessment (WAVE) tool is disclosed that can analyze the characteristics and vulnerabilities of waveforms. The WAVE tool may identify issues in waveforms prior to their implementation in a transmit device or building the back-end processing to receive the waveform at a ground station. The WAVE tool may quantify waveform vulnerabilities, address which vulnerabilities a particular waveform has, and enable the user to modify the waveform design to optimize its performance against threats prior to implementation. Additionally, the WAVE tool may save time and money since new waveforms can be vetted against the tool before implementation. Data from waveforms can be analyzed against a plurality of metrics and scores can be generated providing a quantitative assessment of waveform performance.
System and methods are disclosed that comprise receiving at least one signal via a receiver. The at least one signal is extracted for data via a processor coupled to the receiver, wherein the data includes at least one message and a set of parameters related to the message. A signal output is generated using the at least one message and the set of parameters such that the signal output includes a first portion and a second portion. At least one error is identified in the signal output and corrected using the first portion and the second portion. An output is generated that is used to perform at least one task related to the at least one signal.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04W 4/90 - Services pour gérer les situations d’urgence ou dangereuses, p. ex. systèmes d’alerte aux séismes et aux tsunamis
H03M 13/29 - Codage, décodage ou conversion de code pour détecter ou corriger des erreursHypothèses de base sur la théorie du codageLimites de codageMéthodes d'évaluation de la probabilité d'erreurModèles de canauxSimulation ou test des codes combinant plusieurs codes ou structures de codes, p. ex. codes de produits, codes de produits généralisés, codes concaténés, codes interne et externe
78.
Training-support-based machine learning classification and regression augmentation
Machine learning models are provided that consider, during the process of producing output, various aspects of the training data and/or training process from which the models are created. A machine learning model may generate output (e.g., classification determinations or regression output) that is augmented with information regarding the distribution(s) of the corpus of training data upon which the model was trained, the features extracted from the training data, the resulting determinations made by the model, and/or other information. The augmentation may occur internally while generating the model output, or the output itself may be augmented to include distribution-based data in addition to a model output.
High-throughput software-defined convolutional interleavers and de-interleavers are provided herein. In some examples, a method for generating convolutionally interleaved samples on a general purpose processor with cache is provided. Memory is represented as a three dimensional array, indexed by block number, row, and column. Input samples may be written to the cache according to an indexing scheme. Output samples may be generated every MN samples by reading out the samples from the cache in a transposed and vectorized order.
H03M 13/27 - Codage, décodage ou conversion de code pour détecter ou corriger des erreursHypothèses de base sur la théorie du codageLimites de codageMéthodes d'évaluation de la probabilité d'erreurModèles de canauxSimulation ou test des codes utilisant des techniques d'entrelaçage
G06F 12/0813 - Systèmes de mémoire cache multi-utilisateurs, multiprocesseurs ou multitraitement avec configuration en réseau ou matrice
G06F 17/18 - Opérations mathématiques complexes pour l'évaluation de données statistiques
80.
Apparatus and method for wirelessly measuring battery state of health
An apparatus for monitoring health of one or more cells in a battery includes a health monitoring system configured to measure voltage on one or more cells when a waveform is injected into the one or more cells. The waveform is measured at an end of a pulse for each current.
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
G01R 31/392 - Détermination du vieillissement ou de la dégradation de la batterie, p. ex. état de santé
G01R 31/396 - Acquisition ou traitement de données pour le test ou la surveillance d’éléments particuliers ou de groupes particuliers d’éléments dans une batterie
G01R 31/371 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge avec indication à distance, p. ex. sur des chargeurs séparés
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
81.
Circuits and methods for correcting DC bias and suppressing optical carrier frequency in electro-optic modulators
This application relates to circuits and methods for dynamically correcting DC bias and suppressing optical carrier frequency in electro-optic modulators (EOMs). A DC bias voltage for a control path may be determined using a control path DC bias structure. DC bias in a signal path may be corrected by applying the DC bias voltage, or a function thereof, to a signal path DC bias structure. Signal path and control path RF signal structures may be operated for a time period during which their DC biases drift together. An updated DC bias voltage for the control path may be determined using the control path DC bias structure. The drift of DC bias in the signal path may be corrected by applying the updated DC bias voltage, or a function thereof, to the signal path DC bias structure.
G02F 1/225 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur par interférence dans une structure de guide d'ondes optique
G02F 1/21 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur par interférence
82.
Monitoring during additive manufacturing process using thermocouples
A build plate may include one or more thermocouples placed on an underside of the build plate. The one or more thermocouples output temperature fluctuation to assist in monitoring for build plate separation of a product located on top of the build plate.
A digital engineering (DE) platform configured to support space system development and acquisition. The DE platform includes a modular reference architecture models module configured to capture key modular system elements of interest using model-based system engineering (MBSE) and digital object oriented requirements system (DOORS) tools. The DE platform also includes a connectivity matrix module defining interface or specifications between one or more modular system elements. The DE platform is also configured to digitize the interface using a behavior model. The behavior model capturing required activity and/or sequence for a particular use case.
Apparatus and methods for monitoring interference in radio communication systems are provided. In certain embodiments, an interference monitor system for a ground terminal detects for interference based on a sum of the power levels of orthogonal polarizations of detected interference, thereby allowing the total and average peak interference power levels to be obtained independent of interference polarization. Further, the interference can be divided into frequency bins over the received signal bandwidth(s), thereby facilitating measurement of interference spectral characteristics. Multiple interference monitors can be included to detect interference over the full angular range over which potential interference has access as well as to determine an angular direction of the interference.
H01Q 21/06 - Réseaux d'unités d'antennes, de même polarisation, excitées individuellement et espacées entre elles
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
H04B 1/10 - Dispositifs associés au récepteur pour limiter ou supprimer le bruit et les interférences
H04B 7/10 - Diversité de polarisationDiversité de direction
Interconnects may be formed to an electronic device by creating a strong bond between a wire or lead, one or more nanomaterials, and a contacting area on the electronic device. The creating of the strong bond comprises triggering low power air plasma to activate a surface of the one or more nanomaterials forcing the one or more nanomaterials to bond to the surface of the contacting area.
A method for performing an operation on an input signal includes receiving, by a multi-mode waveguide, the input signal imposed on laser light. The received input signal imposed on the laser light is propagated through the waveguide a plurality of times in a plurality of modes, the modes interfering each time they propagate through the waveguide to generate an interference pattern of the plurality of modes. Portions of the interference pattern of the plurality of modes are nonlinearly activated each time those modes propagate through the multi-mode waveguide. Portions of the activated interference pattern of the plurality of modes are output to an optical detector array in parallel with one another each time those modes propagate through the multi-mode waveguide.
G02B 6/12 - Guides de lumièreDétails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p. ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré
An apparatus includes a satellite in the form of a plate having a thickness being smaller than a width of the satellite. The apparatus also includes a plurality of contact points distributed on a face of the satellite, allowing for one or more additional satellites to be stacked upon the satellite.
Tram systems for space vehicles are movable thereon. When the space vehicle is a nested ring cell, for example, the structural ring portion of the design may be mostly or completely passive and contain conducting parts, such as electrical steel. The moving trams may use field coils instead of magnets to generate the magnetic flux to propel the tram. Additional coils on the tram may steer the magnetic flux to generate the forward or reverse thrust forces. These coils may also add the overall motive flux.
An apparatus may include a plurality of cells surrounded by a plurality of heat generating material. The plurality of heat generating material are configured to release heat to each of the plurality of cells causing discharge from each of the plurality of cells in a low temperature environment.
Disclosed herein are systems and methods for estimating an orbit of a satellite using only images captured by an onboard camera of the satellite. One of the disclosed methods includes: capturing a plurality of images using an onboard camera of the satellite; determining the trajectory, loop closure metrics, and the relative geographic position of the satellite using the plurality of images captured by the onboard camera; and estimating the orbit of the satellite based at least on the determined trajectory, loop closure metrics, and the relative geographic position of the satellite.
B64G 1/24 - Appareils de guidage ou de commande, p. ex. de commande d'assiette
G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
B64G 1/36 - Appareils de guidage ou de commande, p. ex. de commande d'assiette par des capteurs, p. ex. par des capteurs solaires, des capteurs d'horizon
91.
Network topology comprising n-hop local neighborhoods
A communications network comprising of n-hop local neighborhoods. The network includes a plurality of communication nodes and a plurality of local neighborhoods wherein each local neighborhood includes a central node around which the local neighborhood is defined. The network also includes a subset of the plurality of nodes located within the local neighborhoods of each of the central nodes. Each of the subset of the plurality of nodes in a local neighborhood is not more than n hops away over currently existing links from the central node of the local neighborhood.
A system includes a curing assembly for low temperature curing and residual stress relief of material substrates. The curing assembly includes a first exposure chamber configured to expose the material substrate to UV radiation, and a second exposure chamber configured to expose the material substrate to Gamma radiation. In some embodiments, a mixing apparatus may mix nano-filler particles into the material substrate prior to exposure to Gamma radiation. The cure assembly may also include a control system for determining exposure dosages and exposure times based at least in part, on the material properties of the material substrate.
G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement
G01N 21/63 - Systèmes dans lesquels le matériau analysé est excité de façon à ce qu'il émette de la lumière ou qu'il produise un changement de la longueur d'onde de la lumière incidente excité optiquement
B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation
A de-orbiting system for a space vehicle may include one or more lithium ion (Li-ion) batteries configured to release hot gases to be used for thrusting during de-orbiting of the apparatus. The system may also include one or more heaters surrounding each of the one or more Li-ion batteries, which are configured to send each of the one or more Li-ion batteries into a thermal runaway. The thermal runaway causes the one or more Li-ion batteries to release stored electrochemical energy within each of the one or more Li-ion batteries.
B64G 1/24 - Appareils de guidage ou de commande, p. ex. de commande d'assiette
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
A vehicle comprising a structure, a plurality of heating sources, and a transport mechanism. The structure is comprised of multiple materials, a composite such that some of the material constituents can be extracted leaving behind others via application of energy (such as de-alloying). The extracted material or materials are configured to be re-purposed into a propellant. The plurality of heating elements surrounds or is embedded within the structure configured to convert the material into the propellant. The transport mechanism is configured to transport the propellant from the structure to a reservoir or to the propulsion system.
F03H 1/00 - Utilisation du plasma pour produire une poussée propulsive par réaction
F02K 9/08 - Moteurs-fusées, c.-à-d. ensembles fonctionnels portant à la fois le combustible et son oxydantLeur commande utilisant des propergols solides
F02K 9/32 - Parties de leur structureDétails non prévus ailleurs
F02K 9/42 - Moteurs-fusées, c.-à-d. ensembles fonctionnels portant à la fois le combustible et son oxydantLeur commande utilisant des propergols liquides ou gazeux
A tracking system includes one or more cameras and machine-vision processors configured to track the position of a plurality of optical tracking emitters. Each of the plurality of tracking emitters is modulated with a message. The message includes identification information for any of the plurality of tracking cameras receiving the message, so that the cameras can track the location of each emitter.
H04B 10/114 - Systèmes d’intérieur ou à courte portée
G01S 1/70 - Radiophares ou systèmes de balisage émettant des signaux ayant une ou des caractéristiques pouvant être détectées par des récepteurs non directionnels et définissant des directions, situations ou lignes de position déterminées par rapport aux émetteurs de radiophareRécepteurs travaillant avec ces systèmes utilisant des ondes électromagnétiques autres que les ondes radio
H04B 10/11 - Dispositions spécifiques à la transmission en espace libre, c.-à-d. dans l’air ou le vide
Under one aspect, a method is provided for processing a received signal, the received signal including a desired signal and an interference signal that spectrally overlaps the desired signal. The method can include obtaining an amplitude of the received signal. The method also can include obtaining an average amplitude of the received signal based on at least one prior amplitude of the received signal. The method also can include subtracting the amplitude from the average amplitude to obtain an amplitude residual. The method also can include, based upon an absolute value of the amplitude residual being less than or equal to a first threshold, inputting the received signal into an interference suppression algorithm so as to generate a first output including the desired signal with reduced contribution from the interference signal.
A physics package for an atomic clock is provided herein. The atomic clock may include a resonance cell storing alkali vapor having first and second hyperfine ground states and an excited state, a light source to transmit light through the resonance cell at a frequency corresponding to electronic decay from the excited state to the first ground state, and a photodetector to receive light from the light source. The physics package may include a laser, and controller circuitry to, at a first time, allow light from the laser to optically pump the alkali vapor from the first hyperfine ground state to the excited state; and at a second time, allow the photodetector to receive light source light from the resonance cell while inhibiting light from the laser from optically pumping the alkali vapor in the resonance cell.
H03L 7/26 - Commande automatique de fréquence ou de phaseSynchronisation utilisant comme référence de fréquence les niveaux d'énergie de molécules, d'atomes ou de particules subatomiques
H01S 1/06 - Masers, c.-à-d. dispositifs utilisant l’émission stimulée de rayonnement électromagnétique dans la gamme des micro-ondes gazeux
G04F 5/14 - Appareils pour la production d'intervalles de temps prédéterminés, utilisés comme étalons utilisant des horloges atomiques
Methods, systems, and computer program products are described for automatically reducing interference within received signals. A first radio frequency (RF) signal having (i) a desired component and (ii) an interference component with a noise component and a jammed component is received. A trained machine learning (ML) model extracts, from the RF signal, the jammed component and a portion of the noise component. The trained ML model generates and outputs a second RF signal comprising the desired component and a reduced noise component. The reduced noise component has the portion of the noise component removed. The jammed component is removed from the second RF signal.
An assembly comprises an exposure chamber configured to receive a structure and identify at least one portion of the structure for further processing. The exposure chamber is further configured to expose the at least one portion of the structure to radiation such that a high cure state and a low residual stress are achieved for the structure. A dosage level of the radiation is determined based, at least in part, on the composition of the structure.
G03F 7/00 - Production par voie photomécanique, p. ex. photolithographique, de surfaces texturées, p. ex. surfaces impriméesMatériaux à cet effet, p. ex. comportant des photoréservesAppareillages spécialement adaptés à cet effet
100.
Methods and devices for controlling stem cell function and gene expression
A method of stimulating and controlling stem cell activity and differentiation on a modified material substrate and a device including the modified material substrate are provided. The method includes providing a material substrate configured for medical use. The material substrate includes at least one surface or interior area available for modification, and the at least one surface or interior area is treated with a plurality of pulsed light beams to obtain a modified material substrate with at least one modified surface or interior area. The at least one modified surface or interior area has a biomimetic architecture with surface and bulk (interior) features, properties, and textures configured to accelerate and control stem cell differentiation when the modified material substrate is contacted with stem cells.
B23K 26/0622 - Mise en forme du faisceau laser, p. ex. à l’aide de masques ou de foyers multiples par commande directe du faisceau laser par impulsions de mise en forme
