Abstract: The present invention relates to a fastening arrangement of a drive wheel (DW) for an endless track (E) of a tracked vehicle (V) the drive wheel (DW) comprising a hub member (H) and a drive sprocket member (S1, S2). Said drive sprocket member comprises a set of teeth (10) arranged around the circumference of said drive sprocket member (S1, S2), said teeth (10) being configured to engage with said endless track (E). Said drive sprocket member (S1, S2) further comprises a support member (20) for teeth (10) of said drive sprocket member. Said teeth (10) are configured to be removably attached to said support member (20). Said fastening arrangement is configured for fastening one or more teeth (10) of the set of teeth (10) to the support member (20). Said fastening arrangement comprises a set of dovetail shaped recesses (22) of said support member (20).

Abstract: There is disclosed a fluid sensor for measuring the pressure of a fluid, the fluid sensor comprising: a surface; a recess formed at the surface, the recess being configured to affect the pressure of the fluid flowing at the recess, at least one ambient sensor port for measuring ambient fluid pressure at the surface, and at least one recess sensor port for measuring the fluid pressure at the recess.

Abstract: The system and method of swarm navigation using a follow the forward approach. Using on-board sensors and communications links between members of a swarm, numerous targets can be engaged more quickly and precisely. In some cases, a designator is used to help a forward of the swarm navigate to a target using image-based navigation up until terminal guidance is used. A cascade of messages are projected back to a following round so that, each member of a swarm can determine a best target/round match and provide real-time, up-to-date information regarding targets' locations and each round's location, range to target, target selection, and the like.

Abstract: The system and method represents a high-resolution, three-dimensional, multi-static precipitation RADAR approach that employs agile microsatellites, in formation and remotely coupled, via a new high-precision, ultra-low power, remote timing synchronization technology. This system and method uses multi-static RADAR interferometric methods implemented via a microsatellite formation to synthesize an effectively large (e.g., 15 m) aperture to provide about 1 km horizontal resolution and about 125 m vertical resolution in the Ku-band.

Abstract: The system and method of projectile flight management using a combination of radio frequency orthogonal interferometry for the long range navigation and guidance of one or more projectiles and a short range navigation and guidance system to provide for more accurate targeting.

Abstract: A fuse is provided with a reversible airbrake intended for a projectile, wherein the airbrake is arranged such that errors which occur in the flight path of the projectile can be corrected by performing one or more extensions and retractions of the airbrake. The airbrake includes at least two braking surfaces symmetrically arranged each behind a respective protective device arranged on the casing surface of the fuse, wherein the brake surfaces can be extended and retracted in a rotational direction behind the at least two protective devices via a twist shaft arranged centrally in the fuse.

Abstract: A method for radiation hardening synchronous Dynamic Random Access Memory (DRAM), where Error Detection And Correction (EDAC) is implemented on-chip. Each bank includes a plurality of interleaved single chip Static Random Access Memory (SRAM) cells with bit registers configured to interface with the interleaved SRAM cells. A first column multiplexer (MUX) configured to select which bit register is accessed. A second column multiplexer is configured to select an accessed byte with the WRITE burst or a READ burst from the selected bit registers of the first column multiplexer. EDAC logic is configured to check Error Correction Code (ECC) during a READ burst and generate ECC during an WRITE burst for SRAM writeback during a PRECHARGE command.

Abstract: The discriminability of an RF fingerprint is increased by “abstracting,” “enhancing,” and “reconstructing” a digital signal before it is transmitted, where the abstraction is a reversible nonlinear compression, the enhancement is a modification of the abstracted data, and the reconstruction is a mapping-back of the abstraction. During a training phase, for each individual RF transmitter, RF fingerprints are analyzed and candidate enhancements are modified until a successful enhancement is identified that provides satisfactory discriminability improvement with minimal signal degradation. The successful enhancement is implemented in the RF transmitter, and the RF fingerprint is communicated to receivers for subsequent detection and verification. Reinforcement learning can direct modifications to the candidate enhancements. The abstraction can implement a deep generative model such as an auto-encoder.

Abstract: The invention relates to a tracked vehicle comprising a vehicle body and a track assembly pair. Said track assembly pair is arranged to suspendedly support said vehicle body allowing relative movement between said vehicle body and each track assembly (21) of said track assembly pair. Each track assembly (21) comprises a track support beam (22) configured to support a plurality of road wheels (23, 23a), a drive wheel (24), and a motor (110) for operating said drive wheel (24), an endless track (25) being disposed around said road wheels (23, 23a) and drive wheel (24). Said motor (110) is fixedly arranged to said track support beam (22). Said motor (110) is arranged in connection to the drive wheel (24) such that a motor axle essentially coaxially coincides with a centre axis (Z) of the drive wheel (24).

Abstract: A system and method of positioning a set of vehicles (102) with respect to an object (104) and a set of targets (106). Embodiments can generate (302) an isovist using data obtained from at least one sensor associated with the object and use it to compute (304) an estimated position of each target with respect to the object. Embodiments can compute (306) a plurality of positions for each vehicle based on the estimated positions of the targets, with each position having an associated value representing a number of the targets at their estimated positions that are within a predetermined proximity of the vehicle at that position. Embodiments can select (308) a subset of the positions based on the associated values, and position (310) the set of vehicles based on the selected subset of the positions.

Abstract: Methods and structures are disclosed for self-automating a process of determining a device's location based on its network address. A computing device includes a network interface configured to communicate with a physical port of a network switch and a memory configured to store a plurality of different initialization protocols each associated with a corresponding network address of a plurality of network addresses. Each of the initialization protocols may be associated with a different physical location. The computing device also includes a processor configured to attempt to connect to the network switch via the network interface using a network address from the stored plurality of network addresses. In response to connecting with the network switch using the network address, the processor identifies a corresponding initialization protocol associated with the network address and executes the corresponding initialized procedure.

Abstract: A method is provided for adjusting a luminance profile of an image displayed on a look-through display to a user. The method comprises: determining a field of view of the user based on a spatial configuration of the user's head. Determining one or more lighting conditions in the field of view. Adjusting the luminance profile for the image based on the field of view, wherein, as a result of the adjusted luminance profile, the image is reconciled with the field of view.

Abstract: A method of producing at least part of a structural frame of a vehicle, the method comprising: providing a support structure (300), the support structure (300) comprising: a plurality of elongate members (301); and one or more retaining members (208) configured to retain the elongate members (301); mounting a plurality of first structural components (206) to the support structure (300) by coupling the first structural components (206) to the elongate members (301) such that each first structural component (206) occupies a different respective position along the elongate members (301); and attaching a plurality of second structural components (204) to the first structural components (206), thereby coupling together the first structural components (206) to form the at least part of the structural frame of a vehicle.

Abstract: Techniques, systems, architectures, and methods for efficient and accurate intelligence gathering comprising the combination of Knowledge Modeling (KM) and Object Based Production (OBP) techniques, in embodiments, leveraging a context data layer within Knowledge Models (KMs) to store connections between models and OBP objects that are representative of any entities, organizations, resources, locations, etc. described within a model.

Abstract: The present invention provides a sabot (8) comprising a first material structure (12, 14) and a second material structure, wherein the first material structure is a lattice and wherein the second material structure is a solid. A munition (100) and a method of manufacturing a sabot are also provided.

Abstract: A guidance assembly and method for guiding an ordnance to a target. The assembly can operated in navigation and targeting modes and has an imager/seeker including an objective lens assembly and an imaging sensor array which provide image data for mapping and terminal seeker performance. The imager/seeker is pivotally mounted on the ordnance. An actuator is coupled to the imager/seeker and can be actuated to pivot the imager/seeker relative to a longitudinal axis of the ordnance from a navigation position to a targeting position. A flight control unit communicates with the imager/seeker and the actuator, and has a processor which analyses the image data to provide navigation flight control signals for guiding the ordnance in the navigation mode of operation and determining a target direction via automatic target recognition or aimpoint algorithms for directing the ordnance to the target in the targeting mode of operation.

Abstract: Techniques are provided for vision-based altitude estimation using one or more platform mounted cameras. An embodiment includes generating projected ground imagery of imagery provided by cameras of the platform, the projection based on a hypothesized altitude. The method also includes obtaining reference ground imagery based on the location of the platform, the location based on platform navigation data. The method further includes registering the projected ground imagery to the reference ground imagery and generating a match score associated with the registration. The method further includes selecting the hypothesized altitude as the estimated altitude based on the match score (e.g., if the match score exceeds a threshold value or is maximized over a set of hypothesized altitudes.

Abstract: A feature detection system, the system comprising: at least one processor in operative communication with a signal source, said processor further comprising at least one non-transitory storage medium, wherein at least one non-transitory storage medium contains instructions configured to cause the processor to: apply a joint group sparse denoising and delay estimation approach to a signal received from said signal source; and output statistics regarding the signal, wherein the joint group sparse denoising and delay estimation approach comprises; using the following equation: { x * , ? * } = argmin x , ? ? { 1 2 ? ? j = 1 M ? ? y j - x ? 2 2 + ? i = 0 N ? ? i ? ? i ? ( D i l i ? x ) } where: ?i are regularization functions; ?y?x?22 is a data-fidelity term and, in embodiments, is chosen as the least-square term; li are real numbers; Di are operators, which may be linear filters that can be written in matrix form; ?i are regularization parameters;

Abstract: A system comprises a camera for capturing an image, at least one processor and at least one memory, the at least one memory storing instructions configured to cause the processor to: obtain an image of a scene captured using the camera, the scene comprising a footprint of a user of the system; identify the footprint in the image; identify a first plurality of reference points each having a fixed position relative to the footprint in the image; identify a second plurality of reference points each having a fixed position relative to a three-dimensional model of the user's foot constructed based on at least one known dimension of the user's foot; determine a transformation matrix by mapping the second plurality of reference points of the three-dimensional model to the first plurality of reference points; and determine, based on the transformation matrix, a three-dimensional position of the camera relative to the footprint in the scene at the time of capturing the image.

Abstract: A zero knowledge communications protocol is provided that can unconditionally secure communications sent through a communications network by encrypting all messages, continuously sending noise messages through the network, and routing all network activity through an anonymity network. This combination of components prevent an eavesdropper on the network from garnering any information about when a communication is sent, the contents and statistics of a communication, the sender, or the intended recipient of the communication.