Abstract: The system and method for an additively manufactured radome for a cavity backed notch comprising at least one lattice structure wherein the antenna works over any 4:1 bandwidth, from VHF to mmW. In some cases, the radome lattice has a density that changes with distance from the antenna. In some cases multiple antennas are used for direction finding. The radome may be additively manufactured from glass-loaded polymer or other materials having a low dielectric constant. In some cases, the radome has a dielectric contract that approaches that of air.

Abstract: A generic online, probabilistic, approximate computational inference model for learning-based data processing is presented. The model includes detection, feature production and classification steps. It employs Bayesian Probabilistic Models (BPMs) to characterize complex real-world behaviors under uncertainty. The BPM learning is incremental. Online learning enables BPM adaptation to new data. The available data drives BPM complexity (e.g., number of states) accommodating spatial and temporal ambiguities, occlusions, environmental clutter, and large inter-domain data variability. Generic Sequential Bayesian Inference (GSBI) efficiently operates over BPMs to process streaming or forensic data. Deep Belief Networks (DBNs) learn feature representations from data. Examples include model applications for streaming imagery (e.g., video) and automatic target recognition (ATR).

Abstract: Techniques and architecture are disclosed for a fuze setter adapter that operationally engages an incompatible fuze and fuze setter with each other so that fuze setting may be undertaken. The fuze and fuze setter each include at least one wireless or direct connect interface for electrical power transfer and/or data communications. The fuze setter adapter provides complementary interfaces configured to couple with the interfaces of the fuze and fuze setter. A processor control in the fuze setter adapter links the fuze setter adapter interfaces. The processor control is programmed to receive data communications from the fuze setter, convert those signals to fuze-compatible signals, and transfer the fuze-compatible signals to the fuze, and vice versa. The processor control is further programmed to receive electrical power from the fuze setter, convert that electrical power to fuze-compatible power, and transfer the fuze-compatible power to the fuze.

Abstract: Techniques, systems, architectures, and methods for providing improved feature detection of signals, especially those in relatively high interference regions, thereby allowing for earlier and longer range detection of communications and radar signals are herein provided. The techniques utilize a general framework of total variation denoising, where signals are assumed to be sparse in a combination of their first or higher order derivatives, to increase signal-to-interference ratio, which is followed by cyclostationarity detection, which is used to estimate signal features, including the period of the signals of interest and their modulation type.

Abstract: The system and method for hyperspectral target identification provides for sue of a sensor array such that for a 2 by 2 pixel, each pixel is set to a different wavelength by employing a band pass filter, so that one can determine whether a cluster set is of a natural object or a man-made object. Using ratios of the collected energy within the partitioned sub-bands one can make near real-time declarations about targets and in some cases, friend or foe determinations.

Abstract: Techniques and architecture are disclosed for a system that includes a fuze at a leading end of a projectile body and a fuze setter configured to engage the fuze and to program the same prior to launch. The system, in one example, includes a plurality of electrical contact pads on an exterior surface of a fuze radome housing and a plurality of electrical contact pins on the fuze setter. The electrical contact pads are arranged in a rotationally symmetric pattern that enables an electrical interface to be formed with the electrical contact pins, regardless of the rotational orientation of the fuze. Commutation is performed to rotate signals to the electrical contact pins instead of requiring that the fuze be physically rotated to bring the electrical contact pads into alignment with the electrical contact pins.

Abstract: A sensor determines the spin rate or rotation frequency of a munition body of a guided projectile relative to precision guidance munition assembly. The spin rate is used to determine launch velocity of the guided projectile early in flight before GPS is operationally active. The launch velocity is used to determine whether a corrective maneuver is needed to change the range of the guided projectile. Logic can control the canards on the canard assembly in response to the determination that a corrective maneuver is needed.

Abstract: A guided projectile including a precision guidance munition assembly utilizes at least one maneuver envelope to optimally control movement of at least one canard to steer the guided projectile during flight. The maneuver envelopes optimize movements of the at least one canard that effectuate movement in either the range direction or the cross-range direction, or both. The maneuver envelope enables optimal timing such that maneuvering in one direction does not come at the expense of maneuver authority in the other direction.

Abstract: A guided projectile including a precision guidance munition assembly utilizes at least one maneuver envelope to optimally control movement of at least one canard to steer the guided projectile during flight. The maneuver envelopes optimize movements of the at least one canard that effectuate movement in either the range direction or the cross-range direction, or both. The maneuver envelope enables optimal timing such that maneuvering in one direction does not come at the expense of maneuver authority in the other direction.

Abstract: A system and method to aid in guidance, navigation and control of a guided projectile including a precision guidance munition assembly is provided. The system and method obtain raw position data during flight of the guided projectile, the raw position data including a plurality of position data points from the guiding sensor for determining positions of the guided projectile, establish a window including a portion of the plurality of position data points, smooth the portion of the plurality of position data points in the window, and determine a reduced noise position estimate of the guided projectile, based, at least in part, on the smoothed portion of the plurality of position data points in the window. The system and method may determine a velocity estimate of the guided projectile and predict an impact point of the guided projectile relative to a target.

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: Techniques are provided for amplitude control of radio frequency signals for transmission. A methodology implementing the techniques according to an embodiment includes calculating an average power level of a segment of the signal. The method also includes calculating a maximum magnitude of samples of the segment. The method further includes generating a first scale factor based on the average power level, as a calculation of the reciprocal of the square root of the ratio of the average power level to a maximum power limit. The method further includes generating a second scale factor based on the maximum magnitude, as a calculation of the ratio of the maximum magnitude limit to the maximum magnitude. The method further includes scaling the samples of the segment based on the smaller of the first and second scale factors.

Abstract: The system and method of frame differencing in high frame rate video to mitigate distortion caused by a bladed rotating assembly in the high frame rate video. The system and method applies one or more thresholds and a scaling factor and use a buffer of pixel values to mitigate distortions caused by blades as they pass in front of an imager.

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 system and method of global positioning system (GPS) anti-jam (AJ) AJ antennas utilizing a circular array of patch antennas. In some cases the circular array is conformal. The elements are single patch, dual band (L1/L2) and are linearly polarized. A mode former and progressive phase tapers are used.

Abstract: A tail kit assembly of a guided munition having a tail kit base connected to a trailing end of a projectile body. The tail kit base is rotatable relative to the projectile body. A trimmable rudder has forward and rearward ends. The forward end is pivotally coupled to the tail kit base, such that the trimmable rudder can, relative to the tail kit base, between retracted and extended orientations. An actuator is fixed between the tail kit base and the rearward end of the trimmable rudder. The actuator is electrically coupled to an onboard guidance system that controls actuation of the actuator to pivot the trimmable rudder between the retracted orientation and the extended orientation.

Abstract: A system and method for rank estimation of electromagnetic emitters is provided. One exemplary feature of the system and method includes the use of a Fixed Sigma Gaussian Mixture Model (FSGMM) to determine a rank estimation of electromagnetic emitters. Another exemplary feature of the system and method includes the use of a Gaussian Mixture Model (GMM) clustering approach in conjunction with an Akaike Criterion Information (AIC) to determine a number of clusters and associated statistics of emitters.

Abstract: The present disclosure relates to a system and technique for a system for detecting fluorescing particles on a target comprising a viewing device configured to view the target and a light subsystem configured to illuminate the target, wherein the target includes a fluorescing particle that effectuates the fluorescent feedback second wavelength. In one example, no additional fluorescing agent or additive, other than the fluorescing particle, is added to the target. A passive cooling subsystem is configured to prevent overheating of the system without expending additional energy resources. The system includes a filter in operative communication with the viewing device having a selected filter wavelength configured to allow light to pass that is greater than the first wavelength and at least one non-transitory computer readable storage medium having instructions encoded thereon.

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 system and method for detecting or identifying substances based on spectral response signatures is provided. The system utilizes IR imagery, singularly or stored in a database, in operative communication with a database or library of known spectral response signatures. The system correlates the spectral response signature detected, or inherent, in an image or image library, with the set of known signatures in the spectral database. The system generates a report of the substances or chemical compounds present in at least a portion of the image. The system can also query a database of IR products for an area of interest, and return results in a report or via an interactive tool, for IR products containing specific IR spectral results.