Abstract: The system and method for lightweight spiral antenna array packaging uses a foam core and metallic elements such that the foam core is machined to accept the folded metallic elements to create a compact and light weight assembly. The assembly can be bonded to other assemblies to form arrays. The array is then encapsulated in a prepreg fiberglass skin with a conductive layer of fabric/screen therein.

Abstract: A system and process for testing and analyzing a laser beam is provided. The system and process allows for repeatable testing of a laser beam to provide a beam intensity profile while accounting for variation in measurements attributable to outside factors. The system and process further allows for simultaneous measurement and analysis of a laser beam having multiple wavelengths.

Abstract: A laser warning receiver system and method having at least four optical components mapped to a photodetector array to provide for omnidirectional detection of incident laser light. In some cases, a fifth optical component is mapped to the central portion of a photodetector array to provide hemispheric detection of laser light. The laser warning receiver system is configured to detect laser light in the NIR, SWIR, MWIR, and/or LWIR range using a single photodetector array and ROIC.

Abstract: A projectile round for intercepting an incoming threat to a vehicle or the like is provided. The projectile round may include an explosive layer, which upon detonation, may cause a the fracturing of one or more material layers into one or both of shrapnel and chaff while simultaneously causing the distortion and/or destruction of a piezoelectric material contained within the projectile round. The distortion and/or destruction of this piezoelectric material may further cause the release of an electromagnetic pulse. The projectile round may be part of a countermeasure system against guided munition threats, including those posed by man-portable air defense systems.

Abstract: Techniques are disclosed for determining AOA of one or more radar pulses received at a vehicle and originating from a source. The techniques are particularly well-suited to provide pilots with a more accurate determination of the azimuth angle to the radar source, although ground-based and water-based vehicles may benefit as well. Some embodiments discussed herein determine a true estimation of both azimuth and elevation angles, with reference to an aircraft's body-centered coordinate system, to the radar source. These parameters can also be used to determine a more accurate position on the ground for the radar source.

Abstract: Techniques are provided for cyber warning. One technique includes a cyber warning receiver (CWR). The CWR includes a bus sensing circuit to sense traffic on a communications bus over time, an anomaly detecting circuit to detect anomalous behavior in the sensed bus traffic, a data fusing circuit to fuse the detected anomalous behavior into groups having similar characteristics, a decision making circuit to decide if the fused anomalous behavior is normal or abnormal, and a behavior logging circuit to log the detected anomalous behavior on an electronic storage device. In one embodiment, the CWR further includes a behavior alerting circuit to alert an operator to the fused anomalous behavior identified as abnormal. In one embodiment, the communications bus is an embedded communications bus, such as a MIL-STD-1553 bus, and the CWR is a standalone device configured to connect to the MIL-STD-1553 bus as a bus monitor.

Abstract: An aperture feed network includes a substrate having a first surface and a parallel second surface, first and second conductive traces on the first surface of the substrate, a third conductive trace on the second surface of the substrate, a conductive via extending through a thickness of the substrate, and one or more ground plane structures on the second surface of the substrate. The substrate comprises a dielectric material. The first and second conductive traces together form a differential signal line. The third conductive trace comprises a first branch and a second branch. The conductive via contacts the first branch of the third conductive trace on the second surface of the substrate and the second conductive trace on the first surface of the substrate. The one or more ground plane structures have irregular shapes.

Abstract: A mount connects a light emitting device, such as a laser diode assembly, to an optical bench. The mount may include a thermoelectrical module coupled to a sub-element of a heat exchanger extending through an opening formed in the optical bench. The thermoelectrical module acts as a heat sink to draw heat outwardly from the laser diode and cool the same. The heat sink enables the laser diode to transmit heat thereto such that substantially all of the heat generated by the laser diode sinks to the heat exchanger. As such, the laser diode transfers virtually no heat to the optical bench so the optical bench is free of deflections or distortions resultant from the heat generated during generation of the laser beam.

Abstract: A system and method for metadata processing that can be used to encode an arbitrary number of security policies for code running on a stored-program processor. This disclosure adds metadata to every word in the system and adds a metadata processing unit that works in parallel with data flow to enforce an arbitrary set of policies, such that metadata is unbounded and software programmable to be applicable to a wide range of metadata processing policies. This instant disclosure is applicable to a wide range of uses including safety, security, and synchronization.

Abstract: A navigation system for a swarm of guided projectiles, such as cruise missiles, having three or more projectiles launched at a target is provided. The projectiles can be in secure communication with one another and can operate as a single swarm using a fusion of angle of arrival and time difference of arrival of a detected signal to direct the projectiles to a point of impact on a target that is offset from an emitter generating the detected signal. The projectiles can further use knowledge of their relative position to maintain and/or adjust their flight path and/or speed to maintain their course to the point of impact in areas of GPS denial or unavailability.

Abstract: A voltage controlled oscillator (VCO) is disclosed to provide reduced phase noise at higher operating frequencies. A buffer-first VCO configured according to an embodiment includes multiple VCO core circuits configured to provide synchronously tuned oscillator signals. Each VCO core circuit is coupled to a summing node through a buffer circuit that generates uncorrelated phase noise such that the summing node provides a summation output of the oscillator signals with reduced phase noise. A multiplexer-less VCO configured according to an embodiment includes multiple buffer-first VCO circuits configured to provide oscillator signals covering a range of frequencies. Each buffer-first VCO circuit is controlled or selected by an enable signal. Buffer circuits are configured to select one of the buffer-first VCO circuits for coupling to a transmission line during a given time period based on the enable signal. The transmission line is terminated in a matched impedance at each end of the line.

Abstract: A navigation system for a swarm of guided projectiles, such as cruise missiles, having three or more projectiles launched at a target is provided. The projectiles can be in secure communication with one another and can operate as a single swarm using a fusion of angle of arrival and time difference of arrival of a detected signal to direct the projectiles to a point of impact on a target that is offset from an emitter generating the detected signal. The projectiles can further use knowledge of their relative position to maintain and/or adjust their flight path and/or speed to maintain their course to the point of impact in areas of GPS denial or unavailability.

Abstract: A scannable-latch random access memory (SLRAM) is disclosed. The SLRAM includes two rows of memory cells. The SLRAM includes a functional data input, a scan data input, a first and second functional data outputs, a scan data output, and a scan enable. The functional data input is connected to a first memory cell in a first and second rows of memory cells. The scan data input is connected to the first memory cell in the first or second row of memory cells. The first and second functional data outputs are connected to a last memory cell in the first and second row of memory cells, respectively. The scan data output is connected to the last memory cell in the first or second row of memory cells. The scan enable allows data to be output from the scan data output or the first and second functional data outputs.

Abstract: Techniques are provided for a laser designation verification device and a method of laser designation verification using the device. The laser designation verification device includes: a lens to sense a first reflection, the first reflection coming from an encoded first laser beam reflecting off a first target; an electronic processing element to decode the sensed first reflection into a first code; and a portable electronic annunciator to provide identification of the first target to an operator of the device based on the decoded first reflection. The method includes: sensing a first reflection using the lens, the first reflection coming from an encoded first laser beam reflecting off a first target; decoding the sensed first reflection into a first code using the processing element; and providing, by the annunciator to an operator of the device, identification of the first target based on the decoded first reflection.

Abstract: A system and method for using an embedded microprocessor in an RF amplifier. The use of an embedded microprocessor avoids manual calibration. The Microprocessor collects initial amplifier performance data based on a set of parameters and calculates the needed corrections. The microprocessor can change levels within the circuit to achieve those operating points. The embedded microprocessor sets voltage levels with internal circuitry and communicates this information externally through a serial communication port, or the like, to allow a user to communicate with and look at the amplifier data and readjust the internal bias levels, as needed. Thus, the internal microprocessor provides for calibration, self-testing, and monitoring of the RF amplifier and also functions as an in situ bias and temperature compensation controller for use in the presence of temperature variation and provides bias sequencing control to protect against improper applied timing of voltage inputs to the amplifier.

Abstract: A system for lossless compression of high frame rate imagery includes at least one non-transitory computer readable storage medium having instructions encoded thereon that, when executed by at least one processor, implement operations to compress high frame rate imagery in a lossless manner, the at least one non-transitory computer readable storage medium including: logic to encode frame deltas to decrease pixel dynamic range; logic to localize frame deltas; and logic to encode subframes with lookback history to further decrease pixel dynamic range for temporary obstructions.

Abstract: A system and method for generating high-resolution imagery using electromagnetic signals includes a moveable vehicle and a multiple-input multiple-output (MIMO) radar system carried by the vehicle. The MIMO radar system includes an antenna array having a plurality of antenna elements. One or more of the antenna elements transmits electromagnetic signals towards a target area and one or more of the antenna elements receives back-scattered electromagnetic signals reflected from the target area. The system generates high-resolution three-dimensional imagery based on back-scattered electromagnetic signal data with system performance characterized by: (a) down range resolution ?R; (b) cross-range resolution ?X; and (c) vertical resolution ?H. The system exploits effective synthetic apertures to improve cross-range resolution ?X and vertical resolution ?H based on, at least in part, the movement of the vehicle along the trajectory and a width and height of the antenna array relative to the target area.

Abstract: A clock distribution and alignment system includes at least three clock generators, each including a clock receiver circuit to receive a first clock signal having a first frequency, and a clock divider circuit to divide the received first clock signal into a second clock signal having a second frequency lower than the first frequency, each of two or more of the clock generators further including a phase detector circuit to compare the phase of the second clock signal with the phase of the second clock signal for a next one of the clock generators, and a clock adjuster circuit to adjust the phase of the received first clock signal based on the compared phases of the second clock signals. In some cases, the clock adjuster circuit is further to align the phases of the second clock signals to within a predefined tolerance of each other.

Abstract: An auto-ICAS compliant system and method of avoiding collisions between aircraft linked by a Link 16 network comprises establishing an ICAS datalink between aircraft less than 10 nautical miles apart. Datalink messages generated and processed by ICAS datalink modules are transmitted and received by Link 16 receivers rather than dedicated ICAS transceivers. The datalink messages are embedded within the propagation delay portions of Link 16 timeslots and exchanged among up to 10 nearby aircraft at a data rate of up to 20 Hz each. Because each Link 16 timeslot can contain a Link 16 message and two 768-bit ICAS datalink messages, conventional Link 16 communication is not impeded. Datalink messages can be software encrypted. Link 16 messages can be encoded using an enhanced throughput Link 16 protocol that includes fewer preamble pulses and/or eliminates STN information. Embedded datalink messages can be transmitted at 1 Watt by a MIDS-JTRS CMN4.

Abstract: Methodology for calibrating a rotating mirror system includes: measuring a normal of a first fiducial of the mirror system; measuring vectors to a second fiducial of the mirror system, each vector being measured at a different angle of rotation about an azimuth axis of rotation of the mirror system; calculating the azimuth axis of rotation using the measured vectors; creating a base coordinate system from the measured first fiducial normal and the calculated azimuth axis of rotation; and for each of a first mirror and a second mirror of the mirror system, measuring normals of the mirror at multiple angles of rotation, calculating an axis of rotation of the mirror using the measured normals, creating a mirror coordinate system from the measured normals and the calculated axis of rotation of the mirror, and calculating a translation and rotation matrix from the mirror coordinate system to the base coordinate system.