Abstract: A multi-band whip antenna having a 30 MHz to 2 GHz bandwidth and an L-band dipole has its coverage extended up to 6 GHz by eliminating nulls and reducing VSWR problems that are cured through the utilization of a sleeve over the feedpoint of the L-band antenna. Chokes in the form of sleeves are provided at either end of the L-band dipole to shorten the L-band antenna for preventing reverse polarity currents at the L-band antenna feedpoint, with the antenna further including the use of double shielded meanderlines to provide improved performance between 410-512 MHz and in which a capacitance sleeve is added at the bottom of the L-band antenna to effectively elongate the antenna below the L-band to permit operation below 700 MHz.

Abstract: The invention relates to methods and devices for shaping plastic optical fibres (POFs), more specifically for optically modifying and yet more specifically for rapidly joining two portions of the plastic optical fibres to create a new optical connection. The plastic optical fibres may be heated under controlled conditions, to soften them and lens, sensor or patterns may be imprinted on portions of the fibre. Methods are provide to optical joints, and combined physical and optical joints.

Abstract: There is disclosed herein a layer assembly for a heat exchanger, the layer assembly comprising: at least one heat pump module, the module comprising a thermo-electric cooler (TEC) attached to an island formed from a flow-permissive material; a flow-permissive layer provided with an island-reciprocating recess for substantially corresponding to and accommodating the island; a thermal storage layer comprising a heat transfer matrix material charged with a phase-change material, and provided with a TEC-reciprocating recess for substantially corresponding to and accommodating the TEC, wherein the TEC is attached to the thermal storage layer at a surface of the TEC-reciprocating recess, and the flow-permissive layer and the thermal storage layer are arranged such that the island of flow-permissive material extends into the island-reciprocating recess and a separation exists between the island and the flow-permissive layer.

Abstract: Embodiments of the present invention relate to an unmanned aerial vehicle (UAV) and a method of use. The UAV may comprise a UAV platform designed around a sensor system. The UAV platform may adjust itself in order to stabilize the sensor system. The UAV platform may comprise front UAV wings, back UAV wings, and a payload chamber. The front UAV wings and back UAV wings may adjust themselves by rotating about a line approximately perpendicular to the UAV's flight line. The payload chamber may adjust itself by rotating about the UAV's flight line. The sensor system may be located in an optimal location on the UAV platform, for example, behind the nose as far back as the front UAV wings. The sensor system may comprise an infrared (IR) and a visible camera.

Abstract: A fiber-optic connector for connecting an optical fiber to other optical assemblies is disclosed. The fiber-optic connector includes a top plate having a window of similar refractive index and transmission index as the material of an optic fiber to be contained within the fiber-optic connector. The fiber-optic connector also includes a ferrule connected to the top plate via multiple spring-loaded screws. The ferrule includes an interface and an insert. The insert is capable of firmly gripping an optical fiber. In order to reduce Fresnel reflection losses of the fiber-optic connector, the window is pre-coated with an anti-reflective surface on the side opposite an optic fiber to be contained within the fiber-optic connector.

Abstract: A method and apparatus for distributing energy through a network (1), the network comprising a plurality of nodes (i.e. consumer units (C1-C4) and provider units (P1-P6)), the method comprising: for each node in the network (1), generating one or more vectors and/or matrices indicative of the desired resource amount or the resource production capacity associated with that node; performing one or more times a process, the process being a process of performing steps (a) to (c); wherein step (a) comprises, for each node, selecting the nodes connected to that node; step (b) comprises, for each node, updating the current set of matrices and/or vectors for that node; and step (c) comprises, for each node, calculating a vector of flows; and delivering from a provider unit (P1-P6) to a consumer unit (C1-C4) connected to that provider unit (P1-P6), an amount of resource dependent on a vector of flows.

Abstract: In present invention provides a micro-display device having a source of illumination comprising an array of illuminating portions and an image generator arranged for receiving a signal comprising image data and comprising an array of image forming portions which may be selectively activated to project image-bearing light corresponding with the image data when illuminated by light from the source of illumination. A controller is also provided, arranged for receiving the image data and for selectively activating illuminating portions of the array of illuminating portions according to the image data and according to predetermined criteria relating to heat generation or power consumption by the micro-display device.

Abstract: The present invention relates to a projection display (10) for displaying an image to a viewer, comprising a curved waveguide (14) made of light transmissive material and having first and second opposed curvilinear surfaces (26, 28), an image-providing light source device arranged to inject collimated image bearing light into the waveguide, an input grating (20) coupled to or within the waveguide to diffract said image bearing light to propagate internally along the curved waveguide by total internal reflection, an output grating (22) provided along a side of the waveguide by which the image bearing light is diffracted out of the waveguide for viewing by the viewer, wherein the input grating and output grating have variable pitch gratings so that a collimated image injected into the waveguide can be output from the waveguide as a collimated image having an increased exit pupil.

Abstract: A small, portable wireless router combined with a wideband, wearable antenna supports a local wireless network created on the move for exchanging information between multiple personnel spread over a useful geographic area. Multiple information sources of different types, such as cameras and GPS, can use the network to send information feeds to mobile users with interface devices such as smartphones that can deliver multiple feeds at the same time to the user. Devices connected to other networks, such as information processing devices at fixed operating bases, can deliver information feeds to the network.

Abstract: The invention relates to a vehicle seat comprising a base portion for attachment in a vehicle; a seat bottom part, with a top side and an underside, which seat bottom part is attached to the base portion; a waist belt, which extends between the seat bottom part's sides. At least one hinge mechanism that is adjustable between a first and a second position is arranged at the base portion. The waist belt is attached to the hinge mechanism, so that the waist belts position in relation to the seat bottom part changes when one on the seat bottom part acting force reaches a predetermined value, which force leads the hinge mechanism from the first to the second position.

Abstract: The present invention relates to a protection device for a vehicle intended for military application comprising a wall configuration with ballistic protection properties arranged to constitute a delimitation of a protection zone of the vehicle, wherein said wall configuration is movably arranged in the vehicle for adaptation according to needs of the configuration of said protection zone. The invention also relates to a vehicle.

Abstract: Disclosed herein is an adaptive communications network and a method of adapting the network. The network comprises, at least a first and second base station operable to communicate with one another and with a plurality of mobile client platforms (MCPs), at least a first and second MCP, each provided with a communications module, a processing module, and a means of manoeuvring. The first MCP is provided with and operable to execute: a first initial route plan and a first initial communications plan for maintaining a communication link with either of the base stations. Further, the first MCP is operable to collect and transmit first situational awareness data. Similarly, the second MCP is provided with and operable to execute: a second initial route plan and a second initial communications plan for maintaining a communication link with at least one of the base stations, and is operable to collect and transmit second situational awareness data.

Abstract: The present invention relates to a protection device for a military vehicle comprising in a drapery configuration at least along the respective vehicle side arranged to a position close to the ground hanging down discrete protection members for protection against projectiles, wherein said discrete protection members comprise a wire element, wherein said wire elements are arranged at a distance from each other. The present invention also relates to a protection device and a vehicle.

Abstract: A method for verifying stitching accuracy of a stitched chip on a wafer is disclosed. Initially, a set of test structures are inserted within a reticle layout. An exposure program is executed to control a photolithography equipment having a stepper to perform multiple exposures of the reticle on a wafer to generate a stitched chip on the wafer. Electrical measurements are then performed on the test structures at actual stitch boundaries of the stitched chip to evaluate stitching accuracy of the stitched chip.

Abstract: A VLF beacon operates in the near field of the antenna, providing a low impedance (magnetic) wave located by employing simple amplitude gradient and phase alignment direction finding (DF) methods. When rotated, the beacon antenna radiates its signal with little attenuation. Beacon antennas include a loop antenna which has a 1/r3 B-field amplitude relationship with distance. The antenna radiation range is limited, but the detectable near field signal is strong. The receiver comprises a simple 2-channel RF front end with filtering and an A/D converter. The antenna for each channel is a much smaller ferrite rod loaded loop.

Abstract: A shearography system that operates while moving at significant speeds over a surface is disclosed. Two lasers are utilized and the distance between the two lasers is adjusted based on the altitude of the aircraft on which the shearography equipment is located, the speed of the aircraft, the distance between two lasers in the shearography equipment lasers, and the time difference between the laser pulses from each of the two lasers. The adjustment of the distance between the two lasers causes the angles of incidence and reflection to be the same for two sequential images and permits the moving shearography to work.

Abstract: A system and method for controlling pulse width for electronic devices in real time is disclosed. The system includes a Digital Pulse Width Modulator (DPWM), a real time calibration circuit and a delay line circuit. The real time calibration circuit is configured to ensure proper fractional delay is applied to yield correct duty cycle of the DPWM. The delay line circuit comprising a multiplexer delay line with built in decoders, modulates the pulse width for fractional clock cycle delay.

Abstract: A method for controlling autopilot roll capture of a rocket comprising adapting the start time and the rate of roll capture such that regardless of the initial rocket spin rate, the roll capture process is completed at a predetermined time.

Abstract: An apparatus, and a method performed by the apparatus, are disclosed wherein the apparatus can be mounted on an unmanned vehicle and arranged to act upon a payload. The payload can be mounted on the unmanned vehicle and, under an action of the apparatus, is able to be activated. The method can include receiving an activation instruction from an entity remote from the unmanned vehicle; determining whether or not the received activation instruction is valid by performing a validation process; and in response to determining that the received activation instruction is valid, activating the payload. In response to determining that the received activation instruction is not valid, activation of the payload may be prevented or opposed.

Abstract: A front-end signal generator for hardware-in-the-loop simulators of a simulated missile is disclosed. The front-end signal generator is driven by the Digital Scene And Reticle Simulation-Hardware In The Loop (DSARS-HITL) simulator. The simulator utilizes a computer to calculate irradiance on an Electro-Optical/Infrared (EO/IR) detector. The generator converts irradiance values into voltages that are injected into the missile's electronics during simulation. The conversion is done with low latency and a high dynamic range sufficient for hardware-in-the-loop simulation. The generator is capable of emulating laser pulse inputs that would be present during laser-based jammer countermeasures. Computer control of the generator occurs via front-panel-data-port (FPDP).