Abstract: A direct-digital receiver architecture is configured to make maximal use of the dynamic range of its analog to digital converter (ADC). The receiver includes an analog frontend that applies a variable gain factor to the analog input signal, a gain level unit that determines the variable gain factor by monitoring the digital signal that is output by the ADC, a gain scaling unit that determines a digital scale factor according to the determined gain factor, and a gain factor multiplier that multiplies the digital signal by the scale factor to produce a scaled digital signal, said multiplying being time aligned with the variable gain factor. The receiver further includes a digital signal processing train that is cognisant of the dynamic range of the ADC, variable gain factor and the digital scale factor for the time domain sample being processed.

Abstract: Methods and systems for operating actuator control electronics are described. In an example, a system can include a first lane and a second lane configured to be in communication with each other. The first lane can receive first data associated with a first pattern and send the first pattern to the second lane. The second lane can receive second data associated with a second pattern and send the second pattern to the first lane. The first and second lanes can each compare the first pattern with the second pattern. Based on the comparison, the first lane can select first input data and the second lane can select second input data. The first lane can generate a first actuator command using the first input data. The second lane can generate a second actuator command using the second input data. The first and second actuator commands can be bit-for-bit identical.

Abstract: Systems and methods for generating infrared radiation are provided. The systems and methods may generate, via one or more pump sources, one or more pump beams. The one or more pump beams may define a single beamline. The systems and methods may further generate, via a nonlinear optical converter, a first signal wavelength, a first idler wavelength, a second signal wavelength, and a second idler wavelength based, at least in part, on the one or more pump beams. The first signal wavelength and the first idler wavelength may be independently variable from the second signal wavelength and the second idler wavelength. The systems and methods may further output, via the nonlinear optical converter, a mid-wave infrared (MWIR) beam including three or more wavelengths in the single beamline.

Abstract: Devices and methods of minimizing the temporal error between pixels or groups of pixels on a focal plane array involving, on a focal plane array comprising at least two pixels or groups of pixels, at least one counter or ramp, and at least one trigger: determining the timing error associated with a time stamp associated with the at least two pixels or groups of pixels; storing the timing error associated with the at least two pixels or groups of pixels and the pixel or pixel group location; and using the stored timing error and pixel or pixel group location to correct subsequent time stamps associated with the at least two pixels or groups of pixels, wherein the timing error corresponds to a systematic error between the trigger and the counter or ramp value due to the location of a pixel or group of pixels on the focal plane array.

Abstract: A system and associated method determines the characteristics of an electric network including distance to a fault through the use of a power divider and a measuring device that measures a quantity from which voltage magnitude can be determined. The measuring device may be a power detector. The power detector may include a power meter to measure voltage and/or a power sensor to measure amplitude. Then, the results from the power detector are used in conjunction with a Hilbert transform to estimate the phase associated with at least two voltage magnitudes when a combined signal is a minimum phase signal.

Abstract: The system and method for target identification using a comparatively low resolution imager combined with a 3D LIDAR on-board a round. This system and method are applicable to any round looking for a 3D target ID. A round, as used herein, may be a weapon, a projectile, a ballistic, a bullet, a munition, a guided weapon, or the like. By coupling a fiber laser of a LIDAR with a piezoelectric oscillator, or actuator, to scan a target and an avalanche photodiode (APD) detector array, or other high resolution sensor, target dimensional information can be used to increase the probability of an accurate target ID.

Abstract: Techniques are disclosed for determining the presence of pulse jams in an identification friend or foe (IFF) system. In an embodiment, a plurality of jamming pulse rates are determined. Each of the plurality of jamming pulse rates is a count of jamming pulses entering the IFF system during a corresponding integration period. Each of the plurality of jamming pulse rates is a count of jamming pulses associated with non-valid signals entering the IFF system. An average jamming pulse rate is computed based on the plurality of jamming pulse rates. The average jamming pulse rate is then compared against a pulse jam threshold to determine whether a pulse jam is present (or not present) in the IFF system.

Abstract: A network defense system can include a sensor alert ingestion framework adapted to monitor network activity and alert detected or suspected anomalies. A network analyzer may be coupled to the sensor alert ingestion framework to analyze the anomalies. A course of action (CoA) simulator may be coupled to the network analyzer adapted to generate a list of decision including courses of action to address the anomalies. There may be a training and feedback unit coupled to the CoA simulator to train the system to improve responses in addressing future anomalies.

Abstract: A network system provides architecture for transmitting data across low-bandwidth links via user datagram protocol (UDP) via a scheduler that schedules, prioritizes, and collaborates data for transmission. The schedule coordinates low priority data and high priority data that may interrupt the low priority data in response to preset rules programmed into an automatic decision module. The automatic decision module may also include variable rules that can vary in response to machine learned information occurring or incoming to the system in situ.

Abstract: A method and system for a Wireless Resilient Routing Reconfiguration linear program or protocol (WR3LP). The WR3LP provides a routing protection scheme that is (i) congestion-free or reduced congestion under a wide range of failure scenarios in point-to-multipoint networks, (ii) efficient in terms of router processing overhead and memory requirement in wireless and point-to-multipoint networks, (iii) flexible in accommodating diverse performance requirements in wireless and point-to-multipoint networks (e.g., different traffic protection levels), and (iv) robust to traffic variations and topology failures in wireless and point-to-multipoint networks.

Abstract: A modular power supply and distribution system includes a controller and at least one power distribution bus operably connected to the controller. The system includes at least one power distribution bus that distributes electrical power to a plurality of loads. The system further includes a data communication network configured to communicate data between the system and the plurality of loads, power load logic for determining a power load requirement of each of the plurality of loads, hold-up logic for determining a hold-up requirement of at least one of the plurality of loads; and power distribution logic for distributing the electrical power to the plurality of loads based, at least in part, on the determined power load requirement of each of the plurality of loads and the hold-up requirement of the at least one of the plurality of loads.

Abstract: Local detail enhancement (LDE) is an imagery contrast enhancement method applied to visible and uncooled long wave imagery. It enhances local spatial detail through the use of a median based high/band pass filter. The generated detail channel is blended with a histogram-equalized version of the image, creating an image that contains both local detail as well as retaining some amount of global intensity. Retaining global intensity coherency allows for easier target acquisition when compared to fully local forms of contrast enhancement.

Abstract: The present invention relates to an enclosure and method of manufacture of an enclosure arranged to define a cavity for electromagnetic shielding of equipment to be housed within the cavity, the enclosure comprising: an aperture (16) arranged to allow access to the enclosure; a conductive membrane (18) arranged to close the aperture; and a waveguide element (20) arranged between the conductive membrane (18) and the cavity; wherein the waveguide element (20) and conductive membrane (18) are configured to attenuate electromagnetic radiation originating from the equipment to be housed within the enclosure (10) thereby to inhibit the transmission of electromagnetic radiation from the enclosure via the aperture (16).

Abstract: A method of non-destructive testing of an article (20) is described. The article has a first surface (21). The article (20) article (20 comprises a set of passageways (200), including a first passageway (200 A). Respective sets of flaws (2000) are associated with respective passageways of the set of passageways (200), including a first set of flaws (2000A), optionally including a first flaw (2000AA), associated with the first passageway (200 A). The method comprises phased array ultrasonic scanning of the article (20) using a phased array probe communicatively coupled thereto through the first surface (21); and detecting the first flaw (2000AA), if included in the first set of flaws (2000A) associated with the first passageway (200A).

Abstract: Systems and methods for double-exposure image processing utilizing inversion techniques are provided. The systems and methods of the present disclosure recover single-exposure images from double-exposure images and strain images from double-exposure images.

Abstract: The present invention relates to a suspension arrangement for a tracked vehicle. The suspension arrangement includes a road wheel arm having a wheel axle portion for supporting a wheel of the vehicle and a pivot axle portion. The road wheel arm is pivotably journalled at the pivot axle portion to a housing that is fixable to the vehicle body. A torsion bar is connected to the pivot axle portion and a torsion tube is arranged to be connected to the vehicle body, with the torsion bar running through the torsion tube and arranged to be connected to the torsion tube. The modulus of elasticity of the torsion tube material is lower than the modulus of elasticity of the torsion bar material such that the maximum suspension travel is increased.

Abstract: A method for coordinating a plurality of vehicles (102, 104) comprising: defining, as a command vehicle (C), a vehicle in the plurality; storing, by one or more storage devices (204) located on one or more of the vehicles (102, 104), a list of capabilities of each vehicle (102, 104); receiving, by one or more processors (202) on the command vehicle (C), a specification of a goal; based on the stored vehicle capabilities, allocating, by the one or more processors (202), to one or more of the vehicles (102, 104), one or more tasks, the one or more tasks being such that, if each of those tasks was to be performed, the goal would be accomplished; and sending, from the command vehicle (C), to each vehicle (102, 104) to which a task has been allocated, a specification of the one or more tasks allocated to that vehicle (102, 104).

Abstract: There is provided a load controller for a system, the system comprising a first sub-system arranged to deliver a first load, the load controller being operable to: acquire a first target load profile, being the load initially desired for delivery by the first sub-system over an operational period; measure in real time during an update window within the operational period: a first parameter of the first sub-system, to obtain a first measured Load Controller monitor signal; and the first load, to obtain a first measured load signal; develop in real time a model of the first sub-system, using the first measured monitor signal and the first measured load signal, the model relating the first load to the first parameter; given the first target load profile, and the model of the first sub-system, generate for a future period a first predicted monitor signal, the future period being ahead of the update window; and determine whether the first predicted monitor signal satisfies at least one predetermined criterion.

Abstract: An ordnance includes a nose cone configured to be attached to a fuze or a warhead. The nose cone, when attached or coupled to the fuze or warhead, covers the fuze and at least a portion of the warhead to provide the ordnance with an aerodynamic profile. The nose cone has a shape that improves the aerodynamic profile of the ordnance as compared to ordnance that does not include a cover over the fuze. The improved aerodynamic profile enables the ordnance to achieve a greater range (approximately 20% or more) than ordnance that does not have a separate nose cone covering the fuze.

Abstract: A method, system, and computer program are described for identifying the presence of narrowband signals within a wide instantaneous bandwidth by exploiting the spatial diversity of the received signals using an array aperture to provide detection capability. For example, the method includes receiving and channelizing digitized signals into signals with a narrow bandwidth of interest. The method further includes estimating covariance matrices associated with the signals, determining a set of Eigenvalues for the covariance matrices, and analyzing each Eigenvalue to determine a rank change estimate. The method further includes identifying one or more of the signals that have a positive rank change estimate, computing a beam forming weight and direction estimate for each signal that has a positive rank change estimate, and outputting an indication of the signals that have a positive rank change estimate including one or more of fine timing information, the beamforming weights, and the direction estimate.