Abstract: A tail portion for a fin-stabilized projectile includes at least two deployable fins, which are inclined. The fins are arranged in at least two sections, which are arranged adjacent to another in the axial direction.

Abstract: The present invention provides a vehicle (100) comprising: a body (4) having a skin; a heat source (12); and a thermal management system. The thermal management system comprises: a heat pipe (14) comprising: an evaporator end (close to 12) and a condenser end (close to heat exchanger 22a, 22b); a vapour arranged to flow from the evaporator end to the condenser end; and a working fluid arranged to flow from the condenser end to the evaporator end, wherein the heat pipe (14) is arranged such that the evaporator end is arranged in proximity to the heat source to absorb heat from the heat source; and one or more heat exchangers arranged in proximity to the condenser end and integrated with the skin. The present invention also provides a method of managing temperature in a vehicle.

Abstract: A device for monitoring the status of a munition fuze is disclosed. The device includes a visible marker; an indicator strip, capable of actuation, from a first state to a second state; and a power source providing power to the munition initiation system, the visible marker and/or the indicator strip. The visible marker and indicator strip are positioned to be visible to an observer when the fuze has been fitted for use on said munition and activation of the power source causes switching of the visible marker from an off state to an on state and actuation of the indicator strip from a first state to a second state, such that the power source's activation is indicated by the actuation of the indicator strip to its second state. The visible marker remains in an on state only if there is sufficient power to operate the initiation system.

Abstract: Techniques are provided for fabricating a low profile antenna that operates with increased efficiency. An antenna implementing the techniques according to an embodiment includes a first arm comprising a first spiral portion and a first rectilinear portion, and a second arm comprising a second spiral portion and a second rectilinear portion. The second spiral portion is concentric with the first spiral portion. The antenna further includes an insulator to separate the arms. The insulator and the arms are planar surfaces disposed within a rectangular region. The first rectilinear portion is adjacent to a first and second side of the perimeter of the rectangular region, and the second rectilinear portion is adjacent to a third and fourth side of the perimeter of the region. The antenna is fabricated as a printed circuit board which is mounted on the fuselage of an aircraft, which serves as a ground plane for the antenna.

Abstract: Techniques, a system, and architecture are disclosed for top side transistor heat dissipation. The heat dissipation is done through single crystal epitaxially grown layer such as AlN. The architecture may include a back side heat sink to increase thermal dissipation as well. The architecture may further include a pseudomorphic channel layer that is lattice matched to the substrate.

Abstract: An emitter ID ambiguity reduction system includes a Mission Data File Ambiguity Resolution matrix that contains both a) the INTEL-based emitter parameters data necessary to break emitter-by-emitter ambiguities, and b) the action(s) the Electronic Warfare (EW) system is to take to collect that data. Control software is triggered via either external command or per Mission Data File information (such as that contained in the Ambiguity Resolution Matrix). The emitter ID ambiguity reduction system includes Data collection hardware and firmware and Data Analysis OFP software algorithm(s).

Abstract: Apparatus and method for authentication components of a public network are disclosed. A master compares an actual HMAC with an expected HMAC, determines that component fails authentication when the actual HMAC does not match the expected HMAC and causes at least one operation to be inhibited when component fails authentication for a preset number of times while the component is connected to the public network. The actual HMAC is determined by the component. The expected HMAC and actual HMAC are independently determined using the same process and using a key. The same key is stored, in advance, in both the master and the component and not transmitted. The master generates a random number and sends the same to the component. The expected HMAC and actual HMAC are determined using the random number input into a one-way hash function.

Abstract: There is provided a method and apparatus for simulating a flight scenario during a live flight of an aircraft. The method comprises: (i) generating (60) images comprising scenes relevant to the simulated flight scenario at a simulated altitude; (ii) calculating, using live flight data received for the aircraft and with reference to a predetermined flight model (65), simulated flight data for the simulated flight scenario at the simulated altitude; and (iii) displaying, on a display system (35) of the aircraft, the calculated simulated flight data while controlling the display of said generated scene images to simulate movement of the aircraft through the displayed scene at a rate and in a direction corresponding to the displayed simulated flight data. The method and apparatus may optionally alter the response of the aircraft to control actions (70) by a pilot to simulate the response expected of the aircraft having the simulated flight characteristics.

Abstract: A system and method for a bistatic coherent LIDAR system with lasers locked to a reference. Utilizing atomic absorption lines to lock the frequency for the bistatic system provides an absolute reference, as each of the lasers in the bistatic system would have the same frequency to within the linewidth of the frequency reference. Each laser may also be additionally locked to an optical cavity for increased frequency stability. Not only does such a system provide essentially an infinite aperture, it also reduces laser power requirements because the detector platforms could be much closer to the target than the platform that contains the laser.

Abstract: Systems, devices, methods and programs for reducing emissions from engines are provided. For example, one system for reducing emissions from engines comprises a heating controller coupled to an energy storage device (ESD). The heating controller is configured to control a heating element to heat one or more components of an after-treatment system using energy from the ESD under a first condition and to control the heating element to stop heating the one or more components of the after-treatment system when a second condition is satisfied. Additionally, another system for reducing emissions from engines comprises a controller detecting a decrease in a demanded torque from an engine and an ISG. The controller is then configured to operate a clutch to disengage the engine from the ISG, if after removing fuel from the engine, the sensed speed of the engine is above a threshold.

Abstract: Techniques are provided for phase coherent frequency synthesis. An embodiment includes a first phase accumulator to accumulate a frequency control word (FCW) at a clocked rate to produce a first digital phase signal representing phase data corresponding to phase points on a first sinusoidal waveform. The embodiment also includes a second phase accumulator to produce an incrementing reference count at the clocked rate and multiply it by the FCW to produce a second digital phase signal representing phase data corresponding to phase points on a second sinusoidal waveform. The multiplication is performed in response to change in the FCW. The embodiment further includes a multiplexer to select between the first and second digital phase signals based on completion of the multiplication. The embodiment also includes a phase-to-amplitude converter to generate digital amplitude data corresponding to the phase points on a sinusoidal waveform associated with the selected digital phase signal.

Abstract: An approach for transmitting and receiving Link 16 messages for long ranges and includes a Link 16 terrestrial transmitter, a Link 16 satellite receiver including an antenna, and a controller. The approach aligns the antenna to the Link 16 terrestrial transmitter to determine a minimum distance to an area of interest of the Link 16 terrestrial transmitter, thereby estimating a range of a link from the Link 16 terrestrial transmitter to the Link 16 satellite receiver. From the range, calculating the message propagation time. Providing a second, shifted, time slot at the Link 16 satellite, shifted by the message propagation time. Processing the signal from the Link 16 terrestrial transmitter in the second, shifted, time slot to produce a message from the Link 16 terrestrial transmitter, and presenting the message to a host.

Abstract: The system and method of weapon on-board range and velocity tracking using a synchronized clock and a pulse beacon on a fire control system, or the like, coupled with an on-board rear-facing detector and processor. A round or a UAS may use this system to accurately estimate range with respect to the fire control system, over time, and the round's or UAS's velocity at various times along its flight path. The system provides for smaller miss distances, and the like.

Abstract: A guidance system for a projectile having a mid-body. The guidance system having a mid-body semi-active laser seeker. The seeker has an objective lens assembly and a sensor array that reads laser energy and transmits data to determine the direction of the laser energy. A glint management unit is connected to mid-body in such a manner that glint laser energy is prevented from passing to the objective lens assembly and sensor array so as to enhance determination of the location of the target.

Abstract: A method for automatically correlating radio wave pulses includes deterring a first normalized phase shift that corresponds to a first radio wave pulse. The method further includes determining a second normalized phase shift that corresponds to a second radio wave pulse. The method further includes determining the first normalized first normalized phase shift is equal to the second normalized phase shift. The method further includes in response to determining the first normalized phase shift is equal to the second normalized phase shift, correlating the first radio wave pulse and the second radio wave pulse as originating from a same radio wave transmitter. The method further includes transmitting a signal indicative of the first radio wave pulse and the second radio wave pulse as originating from the same radio wave transmitter through a circuit.

Abstract: A plug assembly in which the insulator part can be moved from an unfolded state to a folded state. The insulator may be utilised in the unfolded state for assembly of a wiring loom and then folded into the folded state for insertion into a connector body.

Abstract: A method and system for positioning a vehicle in relation to each moving target of an ordered set of moving targets. Each of the moving targets moves from an initial position at a constant velocity. Embodiments can compute an estimated time for the vehicle to be positioned within a predetermined proximity of one of the moving targets; compute an estimated location of the moving target at the estimated time, based on a current position of the moving target and the constant velocity of the moving target, and compute a required velocity for the vehicle to move from its current position to reach the estimated location by the estimated time. If the required velocity is less than or equal to a maximum velocity of the vehicle, outputting the estimated time and the estimated location for use in positioning the vehicle.

Abstract: The system and method for an additively manufactured self-destructive delay device is a bellow/lattice structure or other form. The device may be installed as a replacement to a previous device, where the device yields under the deployment force at a specific rate to match the time-displacement curve established by a previous hydraulic delay device. The delay device has a virtually unlimited lifespan, is cheap to manufacture, and can be adaptable to other loads and conditions for use in or on other platforms. This solution can be applied anywhere where mechanical delay devices are needed within systems. Some examples include wing/fin deployment mechanisms, safety crumple zones, or devices that act as shear pins.

Abstract: The fuse mode of a laser guided munition is remotely set and/or changed by encoding fuse mode information onto fuse mode designating light received by the light detector of the munition. Embodiments do not require hardware modification of existing munitions and/or control systems. The mode designating light can be the target designating laser light, and the fuse mode information can be encoded together with counter counter measure (CCM) information. Or the mode designating light source can be a separate laser or non-laser light source. Encoding of the fuse mode information can be by modulation and/or wavelength selection of the mode designating light. In embodiments, the fuse mode can be selected before and/or after launch of the munition.

Abstract: A system and method for cryptographic verification of entity/vehicle authenticity, comprising generating a Vehicle Identification Number (VIN)—Key for an individual platform/vehicle; applying the VIN—Key to components of the platform/vehicle; receiving input for the platform/vehicle; validating the authenticity of the input and/or the platform/vehicle; performing the operation of the input if it was validated; terminating the operation if it was not validated; logging the operation; and decommissioning the platform/vehicle at the end of life.