Abstract

There is provided a control surface arrangement for influencing fluid flow about a vehicle, the control surface arrangement comprising: a first control surface portion; a second control surface portion, the second control surface provided downstream of the first control surface portion relative to a fluid flow direction, the second control surface portion configured to be moveable relative to the first control surface portion; and a vortex generator surface arrangement arranged to induce vortices in a fluid flow passing over the first control surface portion and/or the second control surface portion.

IPC Classes  ?

• B64C 23/06 - Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
• B63B 1/28 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
• B64C 9/08 - Adjustable control surfaces or members, e.g. rudders bodily displaceable

Abstract

A system and computer-implemented method of data transfer. Embodiments comprise configuring a containerised application (210) to request data from an ambassador sidecar (208) in communication with a message broker (206), and receiving, at the ambassador sidecar, a data request from the containerised application. Embodiments further request, by the ambassador sidecar, the requested data from the message broker, and transmit, from the message broker, the requested data to the ambassador sidecar. Embodiments further transmit, from the ambassador sidecar, the requested data to the containerised application.

IPC Classes  ?

• G06F 9/54 - Interprogram communication
• H04L 67/562 - Brokering proxy services

Abstract

An antenna is provided. The antenna may comprise a magnetostrictive layer configured to, in receive mode, convert a magnetic field of a detected electromagnetic wave into mechanical strain, and a piezoelectric layer configured to, in receive mode, receive the mechanical strain from the magnetostrictive layer and produce a voltage output based thereon. The piezoelectric layer may comprise a memristive material.

IPC Classes  ?

• H01Q 1/36 - Structural form of radiating elements, e.g. cone, spiral, umbrella
• H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
• H10N 30/85 - Piezoelectric or electrostrictive active materials

Abstract

XA24036 - 10 - ABSTRACT N2O5 Synthesis The present invention relates to the synthesis of N2O5, for the nitration of energetic materials. There is provided a method of synthesis of N2O5, comprising 5 the steps of reacting, silver nitrate in the presence of dry chlorine gas, at a temperature in the range of 40 ⁰C to 95 ⁰C in the presence of UV radiation, wherein the reaction product is collected via a cooled region less than 10 ⁰C. Fig 2 10

IPC Classes  ?

• C01B 21/20 - Nitrogen oxidesOxyacids of nitrogenSalts thereof

Abstract

In some examples, a dual polarized dipole structure comprises a first dipole arm comprising a first dipole and a second dipole arm comprising a second dipole, the first and second dipoles being substantially planar and being joined to each other at a feed point of the dipole structure disposed at the centre of the first and second arms, whereby to form a dual polarized dipole radiating element for an antenna structure, wherein the first dipole arm and the second dipole arm are so arranged, with respect to a square unit cell, such that the first dipole and the second dipole are orthogonal to one another and so arranged as to lie on respective diagonals of the square unit cell.

IPC Classes  ?

• H01Q 21/24 - Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
• H01Q 9/16 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Abstract

A method of providing a functionalized veil or tape for manufacture of fibre-reinforced composite parts, the method comprising: depositing functional particles (12) in and/or on a veil or tape (11), by flowing F a fluid (13), through the veil or tape (11), to provide the functionalized veil or tape, wherein the veil or tape comprises reinforcement fibres and the fluid includes functional particles.

IPC Classes  ?

• B05D 1/12 - Applying particulate materials
• C09J 7/21 - PaperTextile fabrics

Abstract

A guided vehicle that includes a propulsion system, a housing that is operably engaged with the propulsion system, a guidance device defining a viewing window and being operably engaged with the housing and is disposed inside of the housing, and a cover that is rotatably engaged with the housing and is configurable between a pre-flight configuration and a flight configuration. When the cover is provided in the pre-flight configuration, the viewing window is completely shielded by the cover, and when the cover is provided in the flight configuration, the viewing window is free from being shielded by the cover. When the propulsion system, the housing, and the guidance device collectively rotate in a first direction in flight, the covers rotates about the housing in a second direction opposite to the first direction wherein the cover transitions from the pre-flight configuration to the flight configuration.

IPC Classes  ?

• F42B 10/46 - Streamlined nose conesWindshieldsRadomes
• F42B 15/08 - Self-propelled projectiles or missiles, e.g. rocketsGuided missiles for carrying measuring instruments
• G01D 11/26 - WindowsCover glassesSealings therefor

Abstract

A small form factor aircraft comprising: a body comprising an internal volume; at least one motor disposed within the internal volume; at least one lead screw driven by the at least one motor; at least one collar disposed at least partially within the internal volume of the body; at least one pair of wings, each wing being rotatably attached to the collar adjacent a forward or rear edge; at least one coupler, each coupler being rotatably coupled to a pair of adjacent wings, the coupler comprising a threaded, central section configured to engage with the at least one lead screw such that rotation of the at least one lead screw results in axial translation of the at least one coupler within and relative to the body; and a controller configured to control the at least one motor.

IPC Classes  ?

• B64C 3/40 - Varying angle of sweep
• F42B 10/14 - Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel

Abstract

A system for supplying a flow of compressed air comprises an air cycle system (ACS) arranged to output a flow of cooled air, and an airflow recirculation path configured to direct the cooled air from the ACS to one or more locations requiring cooling. The ACS comprises an air compression stage, a heat exchange stage and an air expansion stage. The airflow recirculation path is also configured to direct the cooled air from said one or more locations to an inlet of the air compression stage of the ACS. The system further comprises an air outlet controllable to divert at least a portion of said compressed air away from the airflow recirculation path, thereby providing a supply of compressed air, and comprises an air inlet controllable to introduce air into the airflow recirculation path.

IPC Classes  ?

• B64D 13/06 - Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned

Abstract

An air vehicle assembly initialization and ejection system includes a canister configured to contain an air vehicle assembly, where the air vehicle assembly includes an onboard electronic system and at least one squib for ejecting the air vehicle assembly from the canister. The system further includes a magazine having a canister position configured to contain the canister. The system further includes a first signal path providing electrical communication of a first control signal between the canister position and the canister, the first control signal for causing the onboard electronic system to power up, and a second signal path providing electrical communication of a second control signal between the canister position and the canister, the second control signal for causing the at least one squib to detonate.

IPC Classes  ?

• B64F 1/04 - Ground or aircraft-carrier-deck installations for launching aircraft
• B64U 70/50 - Launching from storage containers, e.g. from submarine missile tubes
• F41F 1/00 - Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannonsHarpoon guns

Abstract

A signal acquisition device includes an acquisition processor configured in a first modality, to correlate a set of RF signal samples across a plurality of time offset windows, wherein there are n streams and each of the n streams has a same frequency offset and a different time offset, and in a second modality, to correlate the set of RF signal samples across a plurality of frequency offset windows, wherein there are n streams and each of the n streams has a same time offset and a different frequency offset.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes

Abstract

Techniques for adaptive signal processing. A methodology implementing the techniques according to an example includes converting T blocks of buffered time domain signals received from C channels of an antenna array to T blocks of frequency domain signals, wherein each frequency domain signal comprises N frequency domain bins. The method also includes calculating N covariance matrices based on the T blocks of frequency domain signals for each of the N bins and generating M combined covariance matrices by combining groups of covariance matrices from the N covariance matrices corresponding to a number of adjacent frequency domain bins. The method further includes generating M reduced covariance matrices by extracting a portion from each of the M combined covariance matrices, the portion corresponding to Z of the T blocks. The method further includes calculating weights based on the M reduced covariance matrices to control the antenna array.

IPC Classes  ?

• H01Q 21/00 - Antenna arrays or systems
• G06F 17/14 - Fourier, Walsh or analogous domain transformations
• G06F 17/15 - Correlation function computation
• G06F 17/16 - Matrix or vector computation

Abstract

According to an aspect of the present invention, there is provided a control unit in an active inceptor configurable to generate force feedback in a linked active inceptor system, comprising: a first connection configured when an operation is performed to drive a motor and in response thereto the motor to generate an associated force feedback at the active inceptor; and a second connection configured when the operation is performed to drive a remote motor in a remote active inceptor and in response thereto the remote motor to generate the associated feedback at the remote active inceptor.

IPC Classes  ?

• H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
• H02P 29/60 - Controlling or determining the temperature of the motor or of the drive

Abstract

Techniques for adaptive signal processing. A methodology implementing the techniques according to an example includes converting T blocks of buffered time domain signals received from C channels of an antenna array to T blocks of frequency domain signals, wherein each frequency domain signal comprises N frequency domain bins. The method also includes calculating N covariance matrices based on the T blocks of frequency domain signals for each of the N bins and generating M combined covariance matrices by combining groups of covariance matrices from the N covariance matrices corresponding to a number of adjacent frequency domain bins. The method further includes generating M reduced covariance matrices by extracting a portion from each of the M combined covariance matrices, the portion corresponding to Z of the T blocks. The method further includes calculating weights based on the M reduced covariance matrices to control the antenna array.

IPC Classes  ?

• H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
• H04L 5/00 - Arrangements affording multiple use of the transmission path

Abstract

Techniques for spoofer protection for GNSS receivers. An example methodology includes receiving one or more characteristics of a detected spoofer signal provided by a GNSS spoofer characterization system. The spoofer signal is transmitted by a GNSS spoofer. The one or more characteristics of the detected spoofer signal may include, for instance, one or more of a direction to the GNSS spoofer, a range to the spoofer, a location of the spoofer, and a code type of the detected spoofer signal. The methodology continues with generating parameters for a simulated GNSS signal that is configured to block the GNSS spoofer and transmitting the simulated GNSS signal in the direction of the GNSS spoofer. The parameters can be generated based on the provided one or more characteristics of the detected spoofer signal.

IPC Classes  ?

• G01S 19/21 - Interference related issues
• G01S 19/03 - Cooperating elementsInteraction or communication between different cooperating elements or between cooperating elements and receivers

Abstract

An apparatus for non-contacting measurement of the temperatures of rotatable elements, such as prism elements of a Risley prism assembly, includes IR emissive patches applied to radially outward facing surfaces of the rotatable elements, reflective surfaces configured to axially reflect black body IR radiation emitted by the patches, IR sensors located behind the rotatable elements and configured to sense the reflected black body radiation, and a controller configured to receive data from the IR sensors and determine therefrom the temperatures of the rotatable elements. In embodiments, none of the IR sensors extends radially beyond a housing of the rotatable elements, and in some embodiments the IR sensors do not extend radially beyond a diameter of a largest of the rotatable elements. The apparatus can further include patches oriented axially rearward and associated IR sensors.

IPC Classes  ?

• G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
• G01J 5/02 - Constructional details

Abstract

A cannon system (10) which forms part of a weapon sub-system. The cannon system (10) comprises a cannon turret assembly system (100) comprising a turret assembly (102) for supporting a cannon (104). The turret assembly (102) is rotatably mounted to a support structure (20) such that it is rotatable about a z-axis to travel in a traverse path (106). The turret assembly (102) comprises a cannon assembly support (120) and a cannon assembly (140) pivotably mounted to the cannon assembly support (120) such that it can pivot at least 90 degrees but no more thanl 90 degrees about a cannon pivot axis (150).

IPC Classes  ?

• F41A 27/20 - Drives for turret movements
• F41A 27/18 - Mechanical systems for gun turrets

Abstract

An ammunition feed unit system (500) for loading an ammunition component (30) into a firing chamber (110) of a cannon system (10) which forms part of a weapon sub-system. The ammunition feed unit system (500) comprises an ammunition feed unit (200) and an intermediate ammunition loading unit (600). The ammunition feed unit (200) comprises an ammunition storage rack (202) defining an ammunition component transport path (205) extending in a transport direction (TD1) from an ammunition storage rack inlet (204) to an ammunition storage rack outlet (206). The intermediate ammunition loading unit (600) comprises a support frame (602) centred on, and rotatable about, a z-axis. A plurality of ammunition component support bays (604) are fixed to the support frame (602), the ammunition component support bays (604) being spaced apart from one another around the central axis. Each ammunition component support bay (604) has an ammunition component support bay inlet (606) for the delivery of an ammunition component (30) therethrough to the ammunition component support bay (604) from an ammunition source. Each ammunition component support bay (604) is open at their upper side to define an outlet (608) for the delivery of an ammunition component (30) therethrough from the ammunition component support bay (604) to the ammunition storage rack inlet (204).

IPC Classes  ?

• F41A 9/21 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines sliding, e.g. reciprocating in a vertical direction
• F41A 9/26 - Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine
• F41A 9/37 - Feeding two or more kinds of ammunition to the same gunFeeding from two sides
• F41A 9/45 - Loading arrangements, i.e. for bringing the ammunition into the firing position the cartridge chamber or the barrel as a whole being tiltable between a loading and a firing position

Abstract

A cannon system (10) which forms part of a weapon sub-system. The cannon system (10) comprises a cannon turret assembly system (100), an ammunition feed unit (200) and an ammunition supply system (300). The cannon turret assembly system (100) comprises a turret assembly (102) and a cannon (104). The turret assembly (102) is rotatably mounted to the support structure (20). The cannon (104) is mounted to the turret assembly (102). The ammunition feed unit (200) comprises an ammunition storage rack (202). The ammunition feed unit (200) is mounted to, and moveable with, the cannon (104). The ammunition supply system (300) comprises a first magazine (310) with a first magazine outlet (312) and a second magazine (320) with a second magazine outlet (322). The first magazine (310) is spaced apart from the second magazine (320) around the traverse path (106). The cannon turret assembly system (100) is operable to position the ammunition feed unit (200) at a first position (P1) on the traverse path (106) in which the ammunition storage rack inlet (204) is aligned with the first magazine outlet (312); and operable to position the ammunition feed unit (200) at a second position (P2) on the traverse path (106) in which the ammunition storage rack inlet (204) is aligned with the second magazine outlet (322).

IPC Classes  ?

• F41A 9/37 - Feeding two or more kinds of ammunition to the same gunFeeding from two sides
• F41A 9/09 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines
• F41A 27/18 - Mechanical systems for gun turrets
• F41A 9/01 - Feeding of unbelted ammunition
• F41A 9/45 - Loading arrangements, i.e. for bringing the ammunition into the firing position the cartridge chamber or the barrel as a whole being tiltable between a loading and a firing position
• F41A 9/60 - Empty-cartridge-case or belt-link collectors or catchers

Abstract

There is provided an acoustic black hole comprising: in a first axis, along a line, a variation from a first characteristic to a second characteristic to a third characteristic, wherein the acoustic black hole comprises a taper from the first characteristic to the third characteristic, and wherein the second characteristic is a deviation from the taper.

IPC Classes  ?

• G10K 11/162 - Selection of materials
• B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction

Abstract

There is provided an acoustic black hole comprising: in a first axis, a variation from a first characteristic to a second characteristic, along a line; in a second axis different to the first axis, a variation from a first characteristic to a second characteristic, along the second axis.

IPC Classes  ?

• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

There is provided an acoustic black hole comprising: in a first axis, a taper from a first thickness to a second thickness, along a line; in a second axis perpendicular to the first axis, and away from the line, one or more regions of different spatial property relative to a spatial property of the ABH at the line.

IPC Classes  ?

• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

Disclosed is a kit of parts configured to form an effector. The kit comprises a modular kinetic/non-kinetic effect component that is connectable to at least one further modular component to configure the effector for use in one of a plurality of different use cases. Also disclosed are a modular effector system and a method of forming an effector.

IPC Classes  ?

• F42B 12/02 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
• F42B 17/00 - Rocket torpedoes, i.e. missiles provided with separate propulsion means for movement through air and through water
• F42B 12/42 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of illuminating type, e.g. carrying flares
• F42B 12/44 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of incendiary type
• F42B 15/20 - Missiles having a trajectory beginning below water surface
• F42B 12/00 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
• F42B 12/56 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing discrete solid bodies
• F42B 21/00 - Depth charges
• F42B 19/46 - Marine torpedoes, e.g. launched by surface vessels or submarinesSea mines having self-propulsion means adapted to be launched from aircraft

Abstract

A cannon system (10) which forms part of a weapon sub-system, the cannon system (10) configured for firing an ammunition component (30). The ammunition component (30) comprises a casing (32). The cannon system (10) comprises a cannon (104) provided with a firing chamber (110), the firing chamber (110) has an inlet (190) for receiving an ammunition component (30) and an outlet (192) for the ejection of the ammunition casing (32). There is provided a duct (193) with an inlet (194) and an outlet (195), the duct inlet (194) is aligned with the firing chamber casing outlet (192) and is configured for receiving the casing (32) from the firing chamber casing outlet (192). The duct (193) defines a guide path for transport of the casing (32) from the duct inlet (194) to the duct outlet (195). The duct outlet (195) is configured for allowing the passage of the casing (32) therethrough.

IPC Classes  ?

• F41A 9/45 - Loading arrangements, i.e. for bringing the ammunition into the firing position the cartridge chamber or the barrel as a whole being tiltable between a loading and a firing position
• F41A 9/55 - Fixed guiding means, mounted on, or near, the cartridge chamber

Abstract

A cannon system (10) which forms part of a weapon sub-system. The cannon system (10) comprises a cannon turret assembly system (100) comprising a turret assembly (102) for supporting a cannon (104). The turret assembly (102) is rotatably mounted to a support structure (20) such that it is rotatable about a z-axis to travel in a traverse path (106). The turret assembly (102) comprises a cannon assembly support (120) and a slew ring (130) with a radially outer engagement surface (132). The slew ring (130) is coupled to and rotatable with the cannon assembly support (120). The cannon assembly support (120) comprises an actuator (133) with an engagement member (137) for engagement with the radially outer engagement surface (132). The actuator (133) is mounted radially outwards of the slew ring (130).

IPC Classes  ?

• F41A 27/20 - Drives for turret movements
• F41A 27/22 - Traversing gear

Abstract

An ammunition feed unit (200) for loading an ammunition component (30) into a firing chamber (110) of a cannon system (10) which forms part of a weapon sub-system. The ammunition feed unit (200) comprises a gate unit (210) and a plurality of ammunition storage racks (202). The gate unit (210) comprises a gate unit wall (218) defining an ammunition component receiving housing (212) which defines a gate chamber (214) and a gate unit opening (216) configured to receive one ammunition component (30) at a time into the gate chamber (214). The gate unit (210) is operable to align the gate unit opening (216) with each of the ammunition storage rack outlets (206) and configured such that when the gate unit opening (216) is aligned with one of the ammunition storage rack outlets (206), the gate unit (210) gate unit wall (218) is deployed across the or each other ammunition storage rack outlet (206) to prevent the passage of an ammunition component (30) therethrough.

IPC Classes  ?

• F41A 9/11 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a horizontal plane
• F41A 9/21 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines sliding, e.g. reciprocating in a vertical direction
• F41A 9/22 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines sliding, e.g. reciprocating in a horizontal direction
• F41A 9/37 - Feeding two or more kinds of ammunition to the same gunFeeding from two sides

Abstract

According to the present disclosure there is provided a switch for controlling provision of an electrical signal to control electronics of a munition, the switch comprising: a flexure member in the form of a flexible circuit board, the flexure member configured to deflect due to acceleration of the switch, wherein, in use, deflection of the flexure member is used to change a switch state of the switch.

IPC Classes  ?

• F42C 19/06 - Electric contact parts specially adapted for use with electric fuzes
• H01H 35/14 - Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
• F42C 15/40 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically

Abstract

There is provided a composition and method of deposing an initiatory composition, said composition, comprising a: There is provided a composition and method of deposing an initiatory composition, said composition, comprising a: (i) a nanothermite suspension of a metal (M) oxide and a metal (M′) in a solvent, wherein the average particle size of the metal (M) oxide and a metal (M′) is less than 1000 nm, provided that (M)≠(M′), There is provided a composition and method of deposing an initiatory composition, said composition, comprising a: (i) a nanothermite suspension of a metal (M) oxide and a metal (M′) in a solvent, wherein the average particle size of the metal (M) oxide and a metal (M′) is less than 1000 nm, provided that (M)≠(M′), (ii) wherein said nanothermite suspension comprises a charging reagent comprising a reagent capable of forming a stable complex with each of the metal (M) oxide and the metal (M′), to from a metal (M) oxide complex, and a metal (M′) complex that have the same electrostatic charge, such that said metal (M) oxide complex and a metal (M′) complex repel each other in said suspension, wherein the admixture of the binder, nanothermite suspension charging reagent, has been caused to be mixed under Resonant Acoustic Mixing to provide a stable suspension of a nanothermite complex.

IPC Classes  ?

• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• B22F 1/054 - Nanosized particles
• B22F 1/10 - Metallic powder containing lubricating or binding agentsMetallic powder containing organic material
• B22F 1/107 - Metallic powder containing lubricating or binding agentsMetallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
• B22F 1/12 - Metallic powder containing non-metallic particles
• C06B 33/02 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
• C06B 45/04 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• F42C 19/08 - PrimersDetonators

Abstract

A transparent horizontal gradient freeze (HGF) furnace enables determining a crystallizing growth rate of an ingot by optically monitoring the rate at which a solid/liquid interface traverses across a charge of melted precursor material. The crystallization can be recorded for subsequent analysis, or a machine vision system can monitor and report the solid/liquid traversing rate in near real time, thereby enabling automated regulation of the growth rate to ensure uniform growth. Embodiments implement the disclosed furnace to produce crystalline or polycrystalline indium antimonide mixed with 1.8 wt % nickel antimonide (InSb:NiSb) at a growth rate specified according to required InSb:NiSb properties and a predetermined relationship between the growth rate and the properties of the NiSb needles formed in the ingot. Growth rates can be between 0.02 and 0.08 cm/hr for substantially single crystal ingots, and between 0.5 and 1.5 cm/hr for polycrystalline ingots. The InSb:NiSb can be doped with tellurium.

IPC Classes  ?

• C30B 13/28 - Controlling or regulating
• C30B 13/10 - Single-crystal growth by zone-meltingRefining by zone-melting adding crystallising materials or reactants forming it in situ to the molten zone with addition of doping materials
• C30B 13/14 - Crucibles or vessels
• C30B 13/16 - Heating of the molten zone
• C30B 29/40 - AIIIBV compounds

Abstract

A communications interconnect between the countermeasure controller of a countermeasure system and the dispenser containing the countermeasure payloads therein. Additionally, the present disclosure provides a power connection between the countermeasure controller and the countermeasure dispenser to deliver power to the countermeasure payloads, including smart payloads, utilizing existing vehicle wiring harnesses and wiring kits.

IPC Classes  ?

• F41A 19/68 - Electric firing mechanisms for multibarrel guns
• B64D 1/04 - Dropping, ejecting, or releasing articles the articles being explosive, e.g. bombs
• F41A 19/59 - Electromechanical firing mechanisms, i.e. the mechanical striker element being propelled or released by electric means

Abstract

Various systems and methods for leveraging legacy countermeasure dispensing systems (CMDSs). The legacy CMDSs are leveraged through the expansion of breechplates and magazines in a CMDS by expanding the amount of expendables carried by a CMDS while still maintaining the legacy sequencer and dispenser in a legacy military platform, such as an aircraft. In addition, various circuitry systems are included in a circuit card of the breechplate for duplicating and/or expanding the firing lines provided in a legacy CMDS.

IPC Classes  ?

• F41A 19/68 - Electric firing mechanisms for multibarrel guns
• B64D 1/02 - Dropping, ejecting, or releasing articles
• F41A 19/70 - Electric firing pinsMountings therefor
• F41F 7/00 - Launching-apparatus for projecting missiles or projectiles otherwise than from barrels
• F42B 5/15 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material

Abstract

There is herein provided a collapsible solar panel system. The collapsible solar panel comprises a first panel and a second panel, each panel having or comprising a corresponding solar panel and a hinge positioned between a first side of the first panel and a first side of the second panel. The hinge comprises a flexible element configured to bend along a fold line to allow relative movement between the first panel and the second panel, the fold line being substantially parallel to the first side of the first panel and the first side of the second panel. The collapsible solar panel system is movable between a flat configuration wherein the first panel and second panel lie in substantially the same plane and a folded configuration wherein the first panel lies in a different plane to the second panel.

IPC Classes  ?

• H02S 30/00 - Structural details of PV modules other than those related to light conversion
• H02S 20/00 - Supporting structures for PV modules

Abstract

A communications interconnect between the countermeasure controller of a countermeasure system and the dispenser containing the countermeasure payloads therein. Additionally, the present disclosure provides a power connection between the countermeasure controller and the countermeasure dispenser to deliver power to the countermeasure payloads, including smart payloads, utilizing existing vehicle wiring harnesses and wiring kits.

IPC Classes  ?

• H04B 3/54 - Systems for transmission via power distribution lines
• F41J 2/02 - Active targets transmitting infrared radiation
• F42B 5/15 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
• F42B 12/48 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing gases, vapours, powders or chemically-reactive substances smoke-producing
• F42B 12/70 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing discrete solid bodies for dispensing radar chaff or infrared material
• F41H 3/00 - Camouflage, i.e. means or methods for concealment or disguise

Abstract

A communications interconnect between the countermeasure controller of a countermeasure system and the dispenser containing the countermeasure payloads therein. Additionally, the present disclosure provides a power connection between the countermeasure controller and the countermeasure dispenser to deliver power to the countermeasure payloads, including smart payloads, utilizing existing vehicle wiring harnesses and wiring kits.

IPC Classes  ?

• B64D 1/04 - Dropping, ejecting, or releasing articles the articles being explosive, e.g. bombs
• B64D 7/04 - Arrangement of military equipment, e.g. armaments, armament accessories or military shielding, in aircraftAdaptations of armament mountings for aircraft the armaments being firearms fixedly mounted
• F41A 19/59 - Electromechanical firing mechanisms, i.e. the mechanical striker element being propelled or released by electric means
• F41A 19/60 - Electric firing mechanisms characterised by the means for generating electric energy
• F41A 19/70 - Electric firing pinsMountings therefor
• F41F 3/042 - Rocket or torpedo launchers for rockets the launching apparatus being used also as transport container for the rocket
• F41F 3/06 - Rocket or torpedo launchers for rockets from aircraft
• F41F 3/065 - Rocket pods, i.e. detachable containers for launching a plurality of rockets
• F42B 5/08 - Cartridges, i.e. cases with propellant charge and missile modified for electric ignition
• F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
• F42B 5/15 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
• B64D 1/02 - Dropping, ejecting, or releasing articles
• B64D 7/02 - Arrangement of military equipment, e.g. armaments, armament accessories or military shielding, in aircraftAdaptations of armament mountings for aircraft the armaments being firearms
• F41A 19/58 - Electric firing mechanisms
• F41A 19/69 - Electric contacts or switches peculiar thereto
• F41F 3/04 - Rocket or torpedo launchers for rockets
• F42B 5/02 - Cartridges, i.e. cases with propellant charge and missile
• F42B 5/03 - Cartridges, i.e. cases with propellant charge and missile containing more than one missile

Abstract

A guided vehicle that includes a body, a propulsion system operably engaged inside of the body, a housing operably engaged with the body and encasing a guidance device inside of the housing, a viewing window of the guidance device, and a cover moveably engaged with the housing, wherein the cover is moveable between a pre-flight configuration and a flight configuration. In the pre-flight configuration, the cover covers the viewing window. In the flight configuration, the cover is configured to expose the viewing window in the flight configuration in response to an impulse of acceleration generated by a launch of the guided vehicle.

IPC Classes  ?

• F42B 10/46 - Streamlined nose conesWindshieldsRadomes
• F41G 7/22 - Homing guidance systems
• F42B 10/18 - Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel using a longitudinally slidable support member

Abstract

A countermeasure dispensing system (CMDS) that expands a legacy set of firing lines to a set of expanded firing lines and a set of polling lines. CMDS includes a sequencer, a breechplate that has a set of fire pins, an embedded fire select multiplexing (EFSM) assembly that is operatively connected with the breechplate and the sequencer. The EFSM assembly includes a set of firing lines that operatively connects with the sequencer and the set of fire pins of the breechplate, wherein at least one firing line is configurable for a desired state. The EFSM assembly also includes a set of polling lines that operatively connects with the sequencer and a control logic circuit (CLC) of the EFSM to configure the desired state for the at least one firing line.

IPC Classes  ?

• F42B 5/15 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
• B64D 7/00 - Arrangement of military equipment, e.g. armaments, armament accessories or military shielding, in aircraftAdaptations of armament mountings for aircraft
• F41A 19/68 - Electric firing mechanisms for multibarrel guns
• F42B 4/26 - FlaresTorches

Abstract

A signal acquisition device includes a first stage processing module and a second stage processing module. The first stage processing module is configured to correlate a first set of a plurality of radio frequency (RF) signal samples to a plurality of generated tones, and to output a plurality of interpolated (candidate) tones each having first correlation magnitudes exceeding a first threshold value. The second stage processing module is configured to correlate a second set of the RF signal samples to a plurality of code signals, and to output a plurality of output tones each having second correlation magnitudes exceeding a second threshold value, where the second set of RF signal samples correspond to the interpolated tones.

IPC Classes  ?

• G01S 19/24 - Acquisition or tracking of signals transmitted by the system

Abstract

A countermeasure dispensing system (CMDS) that expands a legacy set of firing lines to a set of expanded firing lines and a set of polling lines. CMDS includes a sequencer, a breechplate that has a set of fire pins, an embedded fire select multiplexing (EFSM) assembly that is operatively connected with the breechplate and the sequencer. The EFSM assembly includes a set of firing lines that operatively connects with the sequencer and the set of fire pins of the breechplate, wherein at least one firing line is configurable for a desired state. The EFSM assembly also includes a set of polling lines that operatively connects with the sequencer and a control logic circuit (CLC) of the EFSM to configure the desired state for the at least one firing line.

IPC Classes  ?

• F41A 19/68 - Electric firing mechanisms for multibarrel guns
• F41A 19/58 - Electric firing mechanisms
• F41A 19/65 - Electric firing mechanisms for automatic or burst-firing mode for giving ripple fire, i.e. using electric sequencer switches for timed multiple-charge launching, e.g. for rocket launchers
• F41A 19/69 - Electric contacts or switches peculiar thereto

Abstract

A sample and hold amplifier output buffer with the low leakage of metal oxide semiconductor field effect transistors (MOSFET) combined with the linearity and dynamic range of silicon-germanium (SiGe) bipolar junction transistors (BJT). In one aspect, the present disclosure provides a sample and hold amplifier output buffer placing a MOSFET input device between the base and emitter of a high linearity SiGe BJT.

Abstract

An electronic warfare (EW) system that is to be installed on a platform has a plurality receivers that are part of the EW system. A first receiver may be an electronic countermeasure (ECM) component to generate a jamming signal. The first receiver operates at a first bandwidth. A second receiver may be a radar warning (RW) component to discriminate characteristics of an incoming first signal from a first emitter. The EW system has a processor that executes instructions to integrate a blanking technique for the RW component and the ECM component to interoperate to collect data at the same time on each respective receiver.

IPC Classes  ?

• G01S 7/38 - Jamming means, e.g. producing false echoes
• G01S 7/02 - Details of systems according to groups , , of systems according to group

Abstract

An electronic warfare (EW) system that is to be installed on a platform has a plurality receivers that are part of the EW system. A first receiver may be an electronic countermeasure (ECM) to discriminate characteristics of an incoming first signal from a first emitter. The first receiver operates at a first bandwidth on a first scan schedule. A second receiver may be a radar warning (RW) component to discriminate characteristics of an incoming second signal from a second emitter. The second receiver operates at a second bandwidth on a second scan schedule. The EW system has a processor that executes instructions to interleave the first scan schedule and second scan schedule. Interleaving the first scan schedule and the second scan schedule may provide the EW system as an integrated EW system with predictable performance that is optimized for environmental load and receiver allocation.

IPC Classes  ?

• G01S 7/38 - Jamming means, e.g. producing false echoes

Abstract

Techniques are provided for improved precision timekeeping for a global positioning system (GPS) receiver. A methodology implementing the techniques according to an embodiment includes generating a system clock signal at a reference frequency, the system clock signal having a first frequency stability. The method also includes generating an auxiliary clock signal at an auxiliary clock frequency, the auxiliary clock signal having a second frequency stability that is greater than the first frequency stability, wherein the auxiliary clock frequency differs from the reference frequency by a frequency offset. The method further includes calculating corrections to the auxiliary clock signal based on a measure of error in the frequency offset and on an estimate of error in the auxiliary clock frequency. The method further includes using the calculated corrections to generate a timing signal, during absence of received GPS satellite signals (e.g., during times when less than four satellite signals are received).

IPC Classes  ?

• H03L 7/06 - Automatic control of frequency or phaseSynchronisation using a reference signal applied to a frequency- or phase-locked loop
• G04R 20/02 - Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
• G06F 1/12 - Synchronisation of different clock signals
• G06F 17/18 - Complex mathematical operations for evaluating statistical data
• H03L 1/00 - Stabilisation of generator output against variations of physical values, e.g. power supply

Abstract

Techniques are provided for power management of a global positioning system (GPS) receiver. A methodology implementing the techniques according to an embodiment includes calculating a pedestal ionospheric delay based on a phase difference between a first GPS signal at a first center frequency and a second GPS signal at a second center frequency. The method also includes powering off a processing chain configured to provide the second GPS signal. The method further includes calculating, at periodic intervals, a secondary ionospheric delay based on a phase difference between an upper sideband and a lower sideband of the first GPS signal and accumulating differences between consecutively calculated secondary ionospheric delays. The method further includes, in response to the accumulated differences exceeding a threshold value, powering on the processing chain configured to provide the second GPS signal and recalculating the pedestal ionospheric delay.

IPC Classes  ?

• G01S 19/34 - Power consumption
• G01S 19/07 - Cooperating elementsInteraction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
• G01S 19/37 - Hardware or software details of the signal processing chain

Abstract

An electronic warfare (EW) system that is to be installed on a platform has a plurality receivers that are part of the EW system. A first receiver discriminates characteristics of an incoming first signal. These first signal characteristics are indicative of a source direction or geolocation of a first emitter producing the first signal. The first receiver operates at a first bandwidth. A second receiver discriminate characteristics of an incoming second signal. These second signal characteristics are indicative of a source direction or geolocation of a second emitter producing the second signal. The second receiver operates at a different second. One or both of the first emitter and the second emitter are at a point of interest (POI). The EW system has a processor that executes instructions for managed extensions to implement an adaptive scan schedule to report a correct and unambiguous identification (CUID) of the POI.

IPC Classes  ?

• G01S 7/38 - Jamming means, e.g. producing false echoes
• G01S 7/02 - Details of systems according to groups , , of systems according to group

Abstract

An integrated antenna and tether structure includes (i) a core including a first dielectric material, (ii) a first layer including a second dielectric material and a first conductive material thereon, the first layer wrapped around at least a section of the core, (iii) a plurality of wires including a second conductive material and wrapped around at least a section of the first layer, (iv) a second layer including a third dielectric material and a third conductive material thereon, the second layer wrapped around at least a section of the plurality of wires, and (v) an outer layer comprising a fourth dielectric material, the outer layer wrapped around at least a section of the second layer. In an example, the antenna structure is to transmit signals at a frequency of at most 50 Megahertz (MHz).

IPC Classes  ?

• H01Q 7/08 - Ferrite rod or like elongated core
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

A calibration assembly for a guided vehicle. The calibration assembly includes an orientation marker that operably engages with a first guidance apparatus of the guided vehicle. The calibration assembly also includes an imaging assembly that operably engages with and is in electrical communication with a second guidance apparatus of the guided vehicle. When the imaging assembly captures the orientation marker at a translated position for at least one cycle, the imaging assembly calibrates a rotational displacement between a first guidance direction of the first guidance apparatus and a second guidance direction of the second guidance apparatus based on an angular displacement of the orientation marker measured between a zeroed position denoting the first guidance direction and the translated position.

IPC Classes  ?

• G01B 11/27 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
• F41G 7/00 - Direction control systems for self-propelled missiles
• G01C 11/04 - Interpretation of pictures
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots

Abstract

A calibration assembly for a guided vehicle. The calibration assembly includes an orientation marker that operably engages with a first guidance apparatus of the guided vehicle. The calibration assembly also includes an imaging assembly that operably engages with and is in electrical communication with a second guidance apparatus of the guided vehicle. When the imaging assembly captures the orientation marker at a translated position for at least one cycle, the imaging assembly calibrates a rotational displacement between a first guidance direction of the first guidance apparatus and a second guidance direction of the second guidance apparatus based on an angular displacement of the orientation marker measured between a zeroed position denoting the first guidance direction and the translated position.

IPC Classes  ?

• F41G 7/00 - Direction control systems for self-propelled missiles
• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• H04N 23/56 - Cameras or camera modules comprising electronic image sensorsControl thereof provided with illuminating means

Abstract

Techniques for direction finding and geolocation of a GPS spoofer. A methodology implementing the techniques according to an embodiment includes steering a beam in a direction selected from a search constellation and measuring a first signal power received through the steered beam. The method also includes steering a null in the selected direction and measuring a second signal power received through the steered null. The method further includes calculating a difference between the first signal power and the second signal power and estimating an angle of arrival (AOA) of the GPS spoofer signal as the selected direction if the calculated difference exceeds a threshold power value. In some such examples, the method includes accumulating signals having four similar estimated AOAs, associated with unique pseudo-random noise codes, and employing a GPS receiver to calculate a candidate position of a source of the GPS spoofer signals based on the accumulated signals.

IPC Classes  ?

• G01S 19/21 - Interference related issues
• G01S 3/04 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves Details
• G01S 3/20 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic derived by sampling signal received by an antenna system having periodically-varied orientation of directivity characteristic
• G01S 19/30 - Acquisition or tracking of signals transmitted by the system code related

Abstract

Techniques are provided for improved precision timekeeping for a global positioning system (GPS) receiver. A methodology implementing the techniques according to an embodiment includes generating a system clock signal at a reference frequency, the system clock signal having a first frequency stability. The method also includes generating an auxiliary clock signal at an auxiliary clock frequency, the auxiliary clock signal having a second frequency stability that is greater than the first frequency stability, wherein the auxiliary clock frequency differs from the reference frequency by a frequency offset. The method further includes calculating corrections to the auxiliary clock signal based on a measure of error in the frequency offset and on an estimate of error in the auxiliary clock frequency. The method further includes using the calculated corrections to generate a timing signal, during absence of received GPS satellite signals (e.g., during times when less than four satellite signals are received).

IPC Classes  ?

• G04R 40/06 - Correcting the clock frequency by computing the time value implied by the radio signal
• G04R 20/04 - Tuning or receivingCircuits therefor

Abstract

An electronic systems package hermetically sealed or equivalent with an electronics coolant liquid immersing the electronic components therein to absorb and dissipate heat away from these electronic components. Also provided is a housing including custom channelization to induce convective eddy currents in an electronics coolant liquid to further direct heat away from sensitive electronic components therein.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H01L 23/44 - Arrangements for cooling, heating, ventilating or temperature compensation the complete device being wholly immersed in a fluid other than air

Abstract

A lead screw control actuation system. A system according to an embodiment includes a motor configured to rotate a lead screw that is configured to increase torque provided by the motor. The lead screw is coupled to a nut through a threaded opening such that rotation of the lead screw causes the nut to move along a longitudinal axis of the lead screw. The nut includes a slot oriented in a direction perpendicular to the direction of motion of the nut. The system further includes a lever arm including a pin at a first end of the lever arm, the pin configured to slide in the slot of the nut to cause the lever arm to rotate in response to the motion of the nut. A second end of the lever arm is coupled to a canard such that rotation of the lever arm causes the canard to rotate.

IPC Classes  ?

• B64C 13/28 - Transmitting means without power amplification or where power amplification is irrelevant mechanical
• B64C 39/12 - Canard-type aircraft
• B64U 10/00 - Type of UAV
• F16H 37/12 - Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types

Abstract

An antenna assembly includes a conductive ground plane, a lower layer of dielectric material above the ground plane, and an upper layer of dielectric material above the lower layer of dielectric material. In an example, at least one of the lower or upper layers of dielectric material comprise dielectric foam. The antenna assembly further includes a conductive feed line between at least a section of the lower layer of dielectric material and the upper layer of dielectric material, and a conductive patch above the upper layer of dielectric material. In an example, a dielectric constant of the lower layer of dielectric material is at least 25%, or at least 50% more, or at least 100% more, or at least 200% more, or at least 500% more than a dielectric constant of the upper layer of dielectric material.

IPC Classes  ?

• H01Q 9/04 - Resonant antennas
• B33Y 80/00 - Products made by additive manufacturing

Abstract

A method of scheduling commands for execution in a computing device includes receiving command data, where the command data includes a command to be executed on a processor and an execution start time for executing the command; storing the command data in a data storage; reading, responsive to determining that the execution start time is within an execution window, the command data from the data storage; and causing the command data to be output to a processor for execution. The method can include assigning a label to the command data, where the label corresponds to an address in the data storage, and where the command data is stored at, and read from, the address in the data storage. The method can include storing, responsive to determining that the execution start time is not within the execution window, the label, and the execution start time in a fast scheduler memory.

IPC Classes  ?

• C21D 9/04 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for rails
• C21D 1/20 - Isothermal quenching, e.g. bainitic hardening
• C21D 1/63 - Quenching devices for bath quenching
• C21D 6/00 - Heat treatment of ferrous alloys
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
• C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese

Abstract

Input/output interface for use in a high integrity control system An input/output system, the input/output system comprising an input/output interface configured to receive sensor data from a sensor; a safety processing function configured to encode the sensor data using an error detecting and/or correcting process to obtain encoded sensor data; and a communications interface configured to transmit the encoded sensor data to a network controller for further transmission through a communications network, wherein the network controller is remote to the input/output system.

IPC Classes  ?

• G06F 21/64 - Protecting data integrity, e.g. using checksums, certificates or signatures
• H04L 9/40 - Network security protocols
• G06F 21/70 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
• H04L 9/06 - Arrangements for secret or secure communicationsNetwork security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
• H04L 9/08 - Key distribution

Abstract

XA23254PCT-SCD - 32 - ABSTRACT STRUCTURAL ASSEMBLIES FOR AIRCRAFT A structural assembly for an aircraft comprises: a frame structure comprising a plurality of structural members each having a longitudinal axis; at 5 least one skin arranged on the frame structure; and at least one connecting element. The at least one connecting element comprises: a first portion configured to conformably interface with at least a portion of the at least one skin; and a second portion configured to rotationally receive at least a portion of one of said structural members, such that said connecting element is rotationally 10 movable relative to said structural member about the longitudinal axis thereof. A method of manufacturing a structural component for an aircraft comprises providing said structural assembly; arranging the at least one connecting element on said structural member; rotationally adjusting the at least one connecting element relative to said structural member; arranging the at least one skin on the 15 first portion of the at least one connecting element; attaching the at least one connecting element to said structural member; and attaching the at least one skin on the first portion of the at least one connecting element. [Figure 2] 20

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons
• B64C 1/08 - Geodetic or other open-frame structures
• B64C 1/12 - Construction or attachment of skin panels

Abstract

There is provided a method of filtering magnetic field measurements generated by an optically pumped magnetometer mounted to an unmanned aerial vehicle. The method comprises filtering the magnetic field measurements to obtain filtered magnetic field measurements which exclude a contribution from a rotor of the unmanned aerial vehicle. The method also includes detecting a magnetic beacon based on the filtered magnetic field measurements. Also provided are devices configured to perform this method.

IPC Classes  ?

• G01V 3/08 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
• G01C 17/02 - Magnetic compasses
• G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
• G01V 3/165 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with magnetic or electric fields produced or modified by the object or by the detecting device
• G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
• G01V 3/40 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for measuring magnetic field characteristics of the earth

Abstract

A magnetic landing pad system, the system comprising: an aircraft landing pad comprising a magnetic element arranged to generate a magnetic field around the landing pad; and an aircraft comprising a magnetometer and a control unit coupled to the magnetometer; wherein the control unit is configured, based on a signal output from the magnetometer, to determine a location of the landing pad relative to the aircraft.

IPC Classes  ?

• B64U 70/95 - Means for guiding the landing UAV towards the platform, e.g. lighting means
• B64U 70/99 - Means for retaining the UAV on the platform, e.g. dogs or magnets
• B64U 70/93 - Portable platforms for use on a land or nautical vehicle

Abstract

An apparatus for causing a motor to rapidly reorient a rotatable element calculates a desired rotation rate f(θe) as a function of an orientation error θe, and calculates a current Ir that, if applied to the motor, will accelerate and then regulate the rotation rate {dot over (θ)} equal to f(θe). Simultaneously, a maximum current Is is calculated that will not exceed an applicable power limit Pmax or motor current limit. The lesser of Ir and Is is applied to the motor. For large rotations, Is is applied during acceleration until {dot over (θ)}=f(θe), and then Ir is applied during deceleration. Multiple elements can be simultaneously rotated by apportioning Pmax among the elements as they are rotated. The allocated Pmaxi can be larger for elements that require larger rotations, and can be varied during the slew time. The rotatable element can be a gimbal pointer mirror or a Risley prism element.

IPC Classes  ?

• H02P 6/16 - Circuit arrangements for detecting position
• H02P 6/08 - Arrangements for controlling the speed or torque of a single motor

Abstract

A configurable interface for an electronic component includes a keying insert and an interface plate. The keying insert is configured to provide multiple keying options. The interface plate has an opening for receiving the keying insert. The interface may further include additional features, such as guidance for blind mate scenarios, any of a basket, a busing having a recess, and a retention cover. In one example, the retention cover has a tab configured to extend into the recess of the bushing to secure one end of the retention cover to the bushing. The keying insert can include a keyway offset from an axis passing through a center of the keying insert. The retention cover is configured, while secured to the interface plate, to secure the basket in one opening of the interface plate and to secure the keying insert in another opening of the interface plate.

IPC Classes  ?

• H01R 13/645 - Means for preventing, inhibiting or avoiding incorrect coupling by exchangeable elements on case or base
• H01R 13/518 - Means for holding or embracing insulating body, e.g. casing for holding or embracing several coupling parts, e.g. frames
• H01R 43/18 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members

Abstract

A circuit includes (i) an input terminal for receiving a single-ended input signal; (ii) an operational amplifier (op-amp) comprising an inverting input, a non-inverting input, and an op-amp output; (iii) a capacitor coupled between the inverting input and the op-amp output; (iv) a first resistor coupled between the inverting input and the input terminal; and (v) a second resistor coupled between the non-inverting input and the input terminal. In an example, a phase locked loop (PLL) includes the circuit, and a voltage controlled oscillator (VCO) is coupled to the output of the operational amplifier.

IPC Classes  ?

• H03L 7/099 - Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
• H03L 7/089 - Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses

Abstract

A memory device includes at least three digital storage circuits arranged in parallel, the digital storage circuits each configured to store state data representing a bit of data in a first or second state; a data input configured to receive input data, the input data representing a bit of data in the first or second state; a voter having a voter output, the voter configured to generate output data at the voter output, the output data representing which of the first and second state are in a majority among the state data stored in each of the digital storage circuits; and a multiplexer operatively coupled to the data input, the voter output, and an input of each of the digital storage circuits, the multiplexer configured to output, to each of the digital storage circuits, one of the input data and the output data based on a functional enable signal.

IPC Classes  ?

• G06F 11/10 - Adding special bits or symbols to the coded information, e.g. parity check, casting out nines or elevens
• G06F 11/08 - Error detection or correction by redundancy in data representation, e.g. by using checking codes
• H03K 19/003 - Modifications for increasing the reliability
• H03M 13/03 - Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words

Abstract

A memory device includes at least three digital storage circuits arranged in parallel, the digital storage circuits each configured to store state data representing a bit of data in a first or second state; a data input configured to receive input data, the input data representing a bit of data in the first or second state; a voter having a voter output, the voter configured to generate output data at the voter output, the output data representing which of the first and second state are in a majority among the state data stored in each of the digital storage circuits; and a multiplexer operatively coupled to the data input, the voter output, and an input of each of the digital storage circuits, the multiplexer configured to output, to each of the digital storage circuits, one of the input data and the output data based on a functional enable signal.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance

Abstract

A receiver includes a first vapor cell and a second vapor cell, wherein the first vapor cell is exposed to a signal of interest and an interfering signal, and wherein the second vapor cell is exposed to at least the interfering signal. In an example, the first and second vapor cells includes an atomic medium including Rydberg atoms. The receiver includes an optical arrangement configured to (i) transmit a first probe laser beam to the first vapor cell, and (ii) transmit a second probe laser beam to the second vapor cell; an interferometer configured to (i) process a first laser beam from the first vapor cell, and a second laser beam from the second vapor cell, and (ii) generate a plurality of voltage signals; and a circuit configured to process the plurality of voltage signals and generate an output signal indicative of the signal of interest.

IPC Classes  ?

• G01R 29/08 - Measuring electromagnetic field characteristics
• G02B 27/14 - Beam splitting or combining systems operating by reflection only

Abstract

An antenna assembly includes a conductive ground plane, a ground shield extending vertically above from the ground plane, and a feed line extending vertically upwards from an opening within the ground plane, without contacting the ground plane. The antenna assembly further includes a first conductive element in contact with an upper surface of the ground shield, and a second conductive element in contact with an upper surface of the feed line, with a slot between the first conductive element and the second conductive element. In an example, the first and second conductive elements are at least in part coplanar, and at least in part on a horizontal plane that is substantially parallel to the ground plane, and separated from the ground plane by a layer of dielectric material.

IPC Classes  ?

• H01Q 21/00 - Antenna arrays or systems
• H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart

Abstract

A signal transmission or processing assembly having a coaxial through-via within a substrate is provided. The substrate may be formed from a material that is a glass-like with an amorphous non-crystalline structure that enables the assembly to create or be created by a deep trepan or annular member that surrounds the center conductor. Methods of manufacture are employed or exploited to preserve the glass-like or other dielectric material structure of substrate to form the inner material or annular member that surrounds the center conductor or pair of center conductors.

IPC Classes  ?

• H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
• H01L 23/66 - High-frequency adaptations
• H01P 3/06 - Coaxial lines
• H05K 1/02 - Printed circuits Details
• H05K 3/00 - Apparatus or processes for manufacturing printed circuits
• H05K 3/42 - Plated through-holes

Abstract

A warhead includes a casing having a periphery wall that extends along a central axis from a forward end of the casing to a rearward end of the casing. The casing defines a cavity configured to contain an explosive material, wherein the forward end of the casing includes a first thread pattern configured to engage a guidance system casing, and the rearward end of the casing includes a second thread pattern configured to engage a propulsion system casing. A first row of fragments is arranged along a first section of the periphery wall of the casing. A plurality of second rows of fragments is rearward of the first row of fragments and arranged along a second section of the periphery wall of the casing. In an example, each of the first and second sections tapers inward towards the central axis as it extends toward the forward end of the casing.

IPC Classes  ?

• F42B 12/32 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction the hull or case comprising a plurality of discrete bodies, e.g. steel balls, embedded therein
• F42B 12/10 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge

Abstract

Photonic coupling mechanisms and techniques are described. In one example, a method includes writing a photonic wirebond to at least one optical waveguide to position the photonic wirebond at a first coupling position relative to a crystalline microresonator, injecting optical power into the at least one optical waveguide, determining a number of generated light modes within the crystalline microresonator, and performing a peak search to locate at least one soliton step corresponding to at least one of the generated light modes within the crystalline microresonator.

IPC Classes  ?

• G02F 1/35 - Non-linear optics
• G02B 6/293 - Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
• G02B 6/42 - Coupling light guides with opto-electronic elements
• G02F 1/365 - Non-linear optics in an optical waveguide structure
• H01S 3/063 - Waveguide lasers, e.g. laser amplifiers

Abstract

Photonic coupling mechanisms are described. In one example, an evanescent coupler includes a substrate, first and second optical waveguides formed on the substrate, and a photonic wirebond having first and second end regions coupled to the first and second optical waveguides, respectively and a loopback portion extending between the first and second end regions, the photonic wirebond extending away from the first optical waveguide by an extension length.

IPC Classes  ?

• G02B 6/293 - Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
• G02B 6/12 - Light guidesStructural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
• G02B 6/30 - Optical coupling means for use between fibre and thin-film device

Abstract

Photonic coupling mechanisms are described. In one example, a reference cavity system includes a housing, a photonic integrated circuit disposed within the housing, the photonic integrated circuit including an optical waveguide network, the optical waveguide network including at least a first optical waveguide and a second optical waveguide, and a crystalline microresonator disposed within the housing. Examples of the reference cavity system further include a photonic wirebond having first and second end regions coupled to the first and second optical waveguides, respectively, and a loopback portion extending between the first and second end regions, the photonic wirebond extending away from the photonic integrated circuit toward the crystalline microresonator and configured to couple light between the optical waveguide network and the crystalline microresonator via evanescent coupling.

IPC Classes  ?

• H01S 3/1112 - Passive mode locking

Abstract

An apparatus includes a first mirror reflecting an input light beam as an intermediate light beam, a second mirror reflecting the intermediate light beam as an output light beam, an angle sensor measuring an angle of the output light beam, and a centration sensor measuring a centration of the input light beam. The apparatus further includes a controller configured to (i) based on measurements from the centration and angle sensors, determine an input path of the input light beam, (ii) based on the determined input path of the input light beam and a target output path, determine a target intermediate path, and (iii) based on the target intermediate path, determine target orientations of the first and second mirrors, such that the first and second mirrors, when steered to the respective target orientations, reflect the input light beam along the target output path.

IPC Classes  ?

• G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system
• G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes
• G02B 7/182 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors for mirrors

Abstract

In one example, a bistatic radar receiver includes at least one first antenna configured to receive one or more jamming signals, a second antenna configured to point a scanning beam to detect one or more reflections of the one or more jamming signals from a target, and a signal processing subsystem coupled to the at least one first antenna and to the second antenna, the signal processing subsystem configured to process the one or more jamming signals and the one or more reflections to derive a range to the target from the one or more jamming signals and the one or more reflections.

IPC Classes  ?

• G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systemsAnalogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
• G01S 7/36 - Means for anti-jamming
• G01S 13/42 - Simultaneous measurement of distance and other coordinates
• G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques

Abstract

The present invention relates to an exhaust nozzle for fluidic-thrust vectoring, comprising an elongate channel for directing exhaust gasses having first and second ends. The elongate channel has an inlet at the first end comprising a continuous curved cross-sectional shape and an exit at the second end having a polygonal cross-sectional shape. In a preferred embodiment, the exhaust nozzle has a rectangular cross-sectional exit. A jet engine and an aircraft having the exhaust nozzle are also provided.

IPC Classes  ?

• F02K 9/86 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant thereforControl thereof characterised by thrust or thrust vector control using nozzle throats of adjustable cross-section

Abstract

The present invention relates to an arrangement for feeding ammunition to a weapon mounted to an elevation device for elevation about an elevation axis, the arrangement comprising an ammunition feeding device arranged between an ammunition channel, from which ammunition is guided, and said weapon, said feeding device being rotatably arranged about a feeding axis, said feeding device having at least one ammunition grip member configured to rotate about said feeding axis between an ammunition collection location at said ammunition channel and an ammunition release location at said weapon, wherein said arrangement is configured such that said at least one ammunition grip member is configured to be rotatably adaptable relative to said feeding axis based on the elevation of said weapon so as to facilitate feeding the ammunition to the weapon in connection to the ammunition release location independent of elevation of said weapon.

IPC Classes  ?

• F41A 9/14 - Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane transverse to the barrel axis

Abstract

An apparatus includes a first module configured to communicatively couple a first device to a communication bus. The first module is configured to transmit, over the bus, first data at a first frequency to a second module that is communicatively coupled to a second device; and to transmit, over the bus, second data at a second frequency to a third module that is communicatively coupled to a third device. The bus may be implemented with a standard communication protocol (e.g., MIL-STD-1553). The first module may include transceiver, encoding/decoding, and cryptography circuitry, and allows for both standard-compliant communications to the third device via a primary communication protocol (the bus standard compliant protocol) as well as communications to the second device via a secondary communication protocol (e.g., a proprietary protocol), over the same bus, thus allowing backwards compatibility for the primary protocol and opportunity for secure communications using the secondary protocol.

IPC Classes  ?

• G06F 21/60 - Protecting data

Abstract

A guided vehicle that includes a body having a first end, a second end opposite to the first end, a longitudinal axis defined between the first end and the second end, and a payload disposed inside of the body between the first end and the second end. The guided vehicle also includes a guidance kit that is configured to guide the guided vehicle, an adapter that mechanically connects the payload and the guidance kit with one another, and an electrical interconnection system that electrically connects the guidance kit and the payload with one another inside of the adapter. When the payload and the guidance kit are mechanically connected with one another and electrically connected with one another, the payload and the guidance kit are angularly aligned at a same clock position measured relative to the longitudinal axis or angularly displaced at different clock positions measured relative to the longitudinal axis.

IPC Classes  ?

• H01R 12/72 - Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
• F42B 15/36 - Means for interconnecting rocket-motor and body sectionMulti-stage connectorsDisconnecting means
• H01R 12/71 - Coupling devices for rigid printing circuits or like structures
• H01R 13/11 - Resilient sockets

Abstract

An apparatus for loading a payload into a vehicle, the apparatus comprising: a payload transporter comprising a cradle configured to support the payload; one or more winches configured to be removably attached to a vehicle; one or more fixing points configured to be removably attached to the vehicle; and one or more lifting straps configured to be secured between the one or more winches and the one or more fixing points and to lift the cradle from the payload transporter into a payload bay of the vehicle.

IPC Classes  ?

• B60P 1/64 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable
• B64F 1/32 - Ground or aircraft-carrier-deck installations for handling freight

Abstract

The present invention relates to a drive sprocket member for a drive wheel member of a tracked vehicle. The drive wheel member is rotatable about a centre axis for rotating an endless track. Said drive sprocket member comprises a set of tooth members arranged around the circumference of said drive sprocket member, and a ring-shaped support member for said tooth members. Said tooth members are, in an operation position, configured to project from the ring-shaped support member in a main direction essentially parallel to the axial direction of said centre axis. Said tooth members are arranged in connection to said ring-shaped support member and shaped so as to provide resilient properties in the radial direction such that, if a tooth member is subjected to a radial force exceeding a certain threshold, said tooth member is configured to deform relative to its operation position.

IPC Classes  ?

• B62D 55/088 - Endless-track unitsParts thereof with means to exclude or remove foreign matter e.g. sealing means, self-cleaning track links or sprockets, deflector plates or scrapers
• B62D 55/125 - Final drives

Abstract

A monolithic structure with a stepped mode transition. In an example, the monolithic structure includes a waveguide to coaxial transition structure including (i) one or more walls defining a cavity, and having a first opening at one end of the cavity and a second opening at an opposing end of the cavity, (ii) a staircase structure extending within the cavity between the first and second openings, and (iii) a coaxial center conductor extending from a last step of the staircase structure and out the second opening. In an example, the monolithic structure further includes an extension portion extending from below the second opening and under and past an end of the coaxial center conductor. A grounded coplanar waveguide transition board is on a first section of an upper surface of the extension portion, and an amplifier is on a second section of the upper surface of the extension portion.

IPC Classes  ?

• H01P 5/08 - Coupling devices of the waveguide type for linking lines or devices of different kinds
• H01Q 13/02 - Waveguide horns

Abstract

A portable launcher to launch a guided projectile at an aerial target, wherein the guided projectile has a projectile guidance kit and a target leading guidance kit that is provided with the guided projectile and the portable launcher. The target leading guidance kit includes a target lead estimation protocol stored on a computer readable media and accessible by a processor of the target leading guidance kit. When the processor executes the target lead estimation protocol, the processor is instructed to dynamically lead a reticle of an electronic sight of the target leading guidance kit from the initial target position to the lead target position in response to the projectile guidance kit detecting a speed of the aerial target and an inertial measurement unit of the target leading guidance kit that measures the slew of the guided projectile from the initial position to the translated position.

IPC Classes  ?

• F41G 7/36 - Direction control systems for self-propelled missiles based on predetermined target position data using inertial references
• F41F 3/045 - Rocket or torpedo launchers for rockets adapted to be carried and used by a person, e.g. bazookas
• F41G 3/06 - Aiming or laying means with rangefinder
• F41G 11/00 - Details of sighting or aiming apparatusAccessories
• F41G 5/08 - Ground-based tracking-systems for aerial targets

Abstract

The present invention relates to a removable weapon system, specifically to a weapons system that is magnetically engaged to a platform. There is provided a removable weapon system for a platform comprising a weapon system with a first mount, said platform comprising a second mount, said first and second mount comprising a reversible engagement device, wherein the reversible engagement device is a magnet

IPC Classes  ?

• F41A 23/24 - Turret gun mountings
• F41A 23/34 - Gun mountings, e.g. on vehiclesDisposition of guns on vehicles on wheeled or endless-track vehicles

Abstract

The present disclosure relates to an active acoustic control system comprising: a first sensor arrangement arranged to sense an acoustic signal in the region of an object, the acoustic signal having a scattered acoustic pressure component and a total acoustic pressure, the first sensor arrangement being arranged to sense the total acoustic pressure of the acoustic signal; a processor configured to: apply a filter to filter the total acoustic pressure and provide a filtered output signal; and estimate the scattered acoustic pressure component based on the filtered output signal from the filter; and a control source arrangement operable to control the scattered acoustic pressure component based on the estimation and a regularisation parameter determined based on a relationship between: level of control of the scattered acoustic pressure component of the acoustic signal when controlled using the control source arrangement of the system using a set of test regularisation parameters.

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase

Abstract

A retina scanning display device (300) configured to provide an image to a retina of an eye (304) of a user, the device comprising: a light source (302) configured to generate intensity modulated light; an optic device (306) for transforming the intensity modulated light into a beam of collimated light; a scanning component (308) configured to receive the beam, scan the beam over at least two axes, and thereby output a series of scanned beams each having one of a plurality of an output angles; and a reflective combiner (320) arranged to reflect the scanned beams onto the eye over the range of output angles, whereupon the eye may focus the beam onto a portion of the retina in dependence on the output angle; wherein the beam has a predetermined diameter (d) greater than 3 mm.

IPC Classes  ?

• G02B 27/01 - Head-up displays
• G02B 26/10 - Scanning systems
• G02B 27/30 - Collimators
• H04N 9/31 - Projection devices for colour picture display

Abstract

A radio frequency device includes an optically transparent, electrically insulating substrate; a plurality of optically transparent, electrically conductive cells disposed on the substrate; a thin film transistor electrically coupled between an optically transparent electrode of a first one of the cells and an optically transparent electrode of a second one of the cells; and an optically transparent conductive control trace electrically coupled to a control terminal of the transistor. In an example, at least one of the cells is a transparent conductive oxide thin film. Electrodes of the transistor may also be optically transparent.

IPC Classes  ?

• H01L 29/786 - Thin-film transistors
• H01L 23/528 - Layout of the interconnection structure
• H01L 27/02 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
• H01L 29/66 - Types of semiconductor device
• H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles

Abstract

A method to simulate radio frequency (RF) signals generated by one or more simulated antennas of a simulated platform is disclosed. The method includes receiving emitter parameters of a plurality of simulated emitters, the emitter parameters including geolocation of at least one of the simulated emitters. The method further includes receiving navigational parameters of the simulated platform, which are indicative of a simulated navigational path of the simulated platform relative to one or more of the plurality of simulated emitters. The method further includes receiving antenna parameters of a simulated antenna located on the simulated platform. The method further includes generating digital data representative of a RF signal that is estimated to be output by the simulated antenna during simulated traversal of the simulated platform along the navigational path, based on the simulated antenna receiving, in a simulated environment, signals from one or more of the plurality of simulated emitters.

IPC Classes  ?

• H04B 17/391 - Modelling the propagation channel
• H04B 17/00 - MonitoringTesting
• H04B 17/13 - MonitoringTesting of transmitters for calibration of power amplifiers, e.g. of gain or non-linearity

Abstract

Techniques are provided for geolocation and tracking of a target emitter. A methodology implementing the techniques according to an embodiment includes receiving measurement data associated with a signal from an emitter, and receiving an estimated uncertainty associated with the measurement data. The measurement data may be provided, for example, by a radar receiver. The method further includes employing a Kalman filter to calculate a geolocation of the emitter, based on the measurement data and the estimated uncertainty. The calculation includes constraining the geolocation of the emitter to the surface of the Earth, for example in a geodetic coordinate system. The measurement data may include azimuth angle of arrival of the signal and depression angle of arrival of the signal or a time difference of arrival of the signal between two measurement platforms. The methodology may be carried out, for instance, onboard an aircraft, projectile, or missile.

IPC Classes  ?

• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves

Abstract

A method of synthesising an organic high explosive includes the steps of i) providing a first solution A, ii) providing a second solution B, wherein the admixture of solution A and solution B are selected such that they are capable upon formation of the admixture of reacting together to provide an organic high explosive, and iii) causing the solution A and B to be mixed and passed through a flow reactor to create an admixture, wherein the flow reactor includes a pipe, wherein the internal diameter of the pipe is selected such that it is less than the critical diameter of the organic high explosive, thereby preventing detonation of the formed organic high explosive in said flow reactor.

IPC Classes  ?

• C06B 49/00 - Use of single substances as explosives
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• C06B 21/00 - Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
• C07D 251/06 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to ring nitrogen atoms
• C07D 257/02 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings

Abstract

A method of determining a point-of-impact of a ballistic projectile comprising: within a predetermined site using a weapon comprising a barrel, a camera, and an IMU configured to provide data concerning barrel attitude: detecting a firing event associated with the weapon; obtaining metadata associated with the weapon; determining estimated pointing angles of the weapon; obtaining a reference image of the site; culling portions of the reference image not associated with the estimated pointing angles, creating a culled reference image; projecting the culled reference image onto an image plane; obtaining an image from the weapon-mounted camera, the image being centered on the pointing direction weapon at the time of firing; registering the image from the weapon-mounted camera with the culled reference image; and calculating the true pointing angles of the weapon based on the alignment of the image obtained by the weapon-mounted camera with the culled reference image.

IPC Classes  ?

• F41G 3/14 - Indirect aiming means
• F41G 3/26 - Teaching or practice apparatus for gun-aiming or gun-laying

Abstract

A computer-implemented method of generating one or more designs for a vehicle, using a vehicle modelling application arranged to generate a three-dimensional model of a vehicle from a vehicle model definition, the vehicle model definition defining a set of values for geometric properties of the vehicle. A set of vehicle model definitions is generated, each vehicle model definition satisfying a set of geometric constraints. The set of vehicle model definitions is then filtered by generating the three-dimensional model of a vehicle from a vehicle model definition using the vehicle modelling application, determining whether the three-dimensional model satisfies a first set of physical constraints, and if the three-dimensional model does not satisfy the set of physical constraints, removing the vehicle model definition from the set of vehicle model definitions.

IPC Classes  ?

• G06F 30/15 - Vehicle, aircraft or watercraft design

Abstract

A computer program product and corresponding method for targeting one or more points in a three dimensional (3D) model is provided. The computer program product including least one non-transitory computer readable storage medium in operative communication with a computer processing unit (CPU), the storage medium having instructions stored thereon that, when executed by the CPU, implement a process to register the 3D model with a stereoscopic image pair. The steps performed include inputting a first image and a second image that define a stereoscopic image pair into an object targeting program, wherein an object is shown in the first image and the second image, inputting a three dimensional (3D) model of the object into the object targeting program, registering the 3D model to the stereoscopic image pair, and targeting a point associated with or near the object based on the 3D model having been registered to the stereoscopic image pair.

IPC Classes  ?

• G06T 7/33 - Determination of transform parameters for the alignment of images, i.e. image registration using feature-based methods
• G06T 7/60 - Analysis of geometric attributes
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
• G06V 20/64 - Three-dimensional objects

Abstract

The following invention relates to methods of producing explosives from the nitration of TAT by flow synthesis. The invention relates to a method for the flow synthesis manufacture of HMX, (1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane), comprising the steps of i. preparing input flow admixture, comprising TAT (1, 3, 5, 7-tetraacetyl-1, 3, 5, 7-tetrazacyclooctane), P2O5, in nitric acid wherein the nitric acid concentration is greater than 95%, ii. causing the input flow reagent to enter a flow reactor, iii. heating the reaction chamber in the flow reactor in the range of 60° C. to 80° C., collecting the reacted admixture. The following invention relates to methods of producing explosives from the nitration of TAT by flow synthesis. The invention relates to a method for the flow synthesis manufacture of HMX, (1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane), comprising the steps of i. preparing input flow admixture, comprising TAT (1, 3, 5, 7-tetraacetyl-1, 3, 5, 7-tetrazacyclooctane), P2O5, in nitric acid wherein the nitric acid concentration is greater than 95%, ii. causing the input flow reagent to enter a flow reactor, iii. heating the reaction chamber in the flow reactor in the range of 60° C. to 80° C., collecting the reacted admixture.

IPC Classes  ?

• C07D 257/02 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings

Abstract

According to an aspect of the present invention there is provided an optical train integrated into a head mounted display, the optical train comprising: a display source, a relay lens arrangement arranged to receive light emitted by the display source, an aperture at the output of the relay lens, wherein a first filter is positioned within the aperture to transmit light from one or more predetermined wavelength bands and reject light of wavelengths not within the one or more predetermined wavelength bands, a mirror arranged to receive light from the aperture, the mirror comprising a mirror coating arranged to reflect light from the predetermined one or more wavelength bands from a given angular incidence range, and a combiner element arranged to receive light from the mirror and direct light towards an eye of a user of the head mounted display, the combiner element comprising: an inner surface comprising a reflective combiner coating arranged to only reflect light from the predetermined one or more wavelength bands, and an outer surface, comprising an anti-reflective combiner coating arranged to minimise reflection of light towards the eye, wherein the inner surface is positioned closer to the eye relative to the outer surface.

IPC Classes  ?

• G02B 27/01 - Head-up displays
• G02B 5/22 - Absorbing filters
• G02B 5/28 - Interference filters
• G02B 5/00 - Optical elements other than lenses

Abstract

An optical train for a head mounted display comprises a display source, a prismatic relay optic, a mirror and a combiner. The prismatic relay optic is arranged to receive light emitted by the display source and form a focal plane proximate to the mirror. The prismatic relay optic comprises two prisms. Light emitted from the display source enters the first prism via a first surface, is reflected off second and third surfaces before passing through the second surface into the second prism through a fourth surface. Light entering the second prism through the fourth surface is reflected off fifth and fourth surfaces before exiting the second prism through a sixth surface. The mirror is arranged to reflect light output from the prismatic relay optic towards the combiner that is arranged to reflect the light incident upon it toward a wearer of the head mounted display.

IPC Classes  ?

• G02B 5/04 - Prisms
• G02B 17/02 - Catoptric systems, e.g. image erecting and reversing system
• G02B 27/01 - Head-up displays
• G02B 27/62 - Optical apparatus specially adapted for adjusting optical elements during the assembly of optical systems
• G02B 5/00 - Optical elements other than lenses
• G02B 17/08 - Catadioptric systems

Abstract

433 ii. preparing input flow reagent B comprising hexamine dissolved in acetic acid; iii. preparing input flow reagent C, comprising acetic anhydride; iv. causing the input flow reagents A, B and C to enter a flow reactor, v. maintaining the reaction chamber to less than 90°C, vi. causing the input flow reagents to react in the reactor.

IPC Classes  ?

• C06B 25/34 - Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
• C07D 251/06 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to ring nitrogen atoms

Abstract

Systems, methods and computer systems for the automatic determination of presence or absence of burn-in overlay data are provided. The systems, methods, and computer systems implement mask generation, edge detection, feature vector generation methods that are combined with machine learning classifiers to rapidly and automatically determine the presence or absence of burn-in overlays in the image for the purpose of removal or other forms to obfuscate burn-in overlay data so as to maintain confidential or classified information while allowing for the release of remaining image data.

IPC Classes  ?

• G06T 5/77 - RetouchingInpaintingScratch removal
• G06T 7/00 - Image analysis
• G06T 7/13 - Edge detection
• G06T 7/136 - SegmentationEdge detection involving thresholding
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components
• G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
• G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation

Abstract

A memory device includes a memory module having a plurality of memory cells, a read port, a write port, and an output port; a first multiplexer having a functional read input, a scrub read input, a scrub read enable input, and a read request output, the read request output coupled to the read port; a second multiplexer having a functional write input, a scrub write input, a scrub write enable input, and a write request output, the write request output coupled to the write port; and a logic circuit configured to scrub, via the scrub write input, at least one of the memory cells based on the scrub read input while the scrub read enable input and/or the scrub write enable input are asserted.

IPC Classes  ?

• G06F 12/02 - Addressing or allocationRelocation

Abstract

first configurationsecond configurationsecond configuration in which a second length of the first support cord (200) and the second support cord (300) extends from the support member (100) to their respective free end (204, 304).

IPC Classes  ?

• B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
• B66D 3/04 - Pulley blocks or like devices in which force is applied to a rope, cable or chain, which passes over one or more pulleys, e.g. to obtain mechanical advantage
• B66C 1/12 - Slings comprising chains, wires, ropes, or bandsNets

Abstract

A flash device for disorientation of a target in each of a plurality of regions comprising: a first light emission unit arranged to emit light in at least one of the plurality of regions and a second light emission unit arranged to emit light in at least one of the plurality of regions; at least one sensor unit operably connected to the first light emission unit and second light emission unit and arranged to generate environment information relating to at least one of the plurality of regions; wherein the first light emission unit and the second light emission unit are configured to activate in response to the environment information generated by the at least one sensor unit.

IPC Classes  ?

• F41H 13/00 - Means of attack or defence not otherwise provided for
• F42B 12/42 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of illuminating type, e.g. carrying flares
• F42B 27/00 - Hand grenades

Abstract

The present invention relates to the deposition of syntactic foams, more particularly to the formation of syntactic foam floatation devices for a vessel. There is provided a method of selectively depositing a syntactic foam, to provide a buoyancy device on a substrate, comprising the steps of: i) selecting a low density polymer with a density in the range of from 0.8 to 1.2 g/cm3, ii) forming an admixture of a pre-polymer 50-95% vol that will form the said low density polymer, and hollow microspheres in the range of from 5-50% vol; iii) selectively depositing the admixture via a nozzle to form a layer, causing solidification of the polymer, repeating step iii) to form the device on the substrate wherein the syntactic foam has a density in the range of from 0.3 to 0.9 g/cm3

IPC Classes  ?

• C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams
• C08J 7/04 - Coating
• C08J 9/228 - Forming foamed products

Abstract

In some examples, a method for manufacturing a switching structure for a radial slot line antenna, RLSA, array using a single semiconductor wafer element, comprises forming a set of active switching devices within the wafer element, a position of each active switching device on the wafer element selected according to a predefined configuration representing a slot element layout for the RLSA array, and forming driving circuitry within the wafer element, the driving circuitry for individually addressing respective ones of the set of active switching devices, whereby to enable selected bias signals to be applied to the set of active switching devices.

IPC Classes  ?

• H01Q 3/24 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
• H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
• H01Q 21/00 - Antenna arrays or systems

Abstract

A gun targeting system (10) comprising a chassis (200). A gun barrel (300) is mounted to the chassis (200) by a pivot mount (304). The system also comprises a chassis suspension system (400) comprising a plurality of wheel arms (402), each wheel arm (402) extending away from a different chassis mount (220) on the chassis (200) to a respective wheel (404), each wheel (404) being rotatably mounted on its respective wheel arm (402), each wheel (404) configured for engagement with a support surface (500). The gun targeting system (10) is operable to position the barrel (300) towards an orientation to target an object by pivoting one or more wheel arms (402) relative to the chassis (200) and/or by pivoting one or more wheels (404) relative to its respective wheel arm (402) and/or by rotating one or more wheels (404) relative to its respective wheel arm (402).

IPC Classes  ?

• F41A 27/24 - Elevating gear
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• F41A 27/22 - Traversing gear