Abstract: A method of selecting and optimizing a countermeasure for application against a novel, ambiguous, or unresponsive radar threat includes selecting a candidate countermeasure and an initial parameter set and varying at least one of the parameters while the effectiveness of the candidate countermeasure against the radar threat is assessed, for example by a human observer. Embodiments include repeating the process with additional candidate countermeasures. For an unresponsive radar threat, a previously effective countermeasure can be selected as the candidate countermeasure. For an ambiguous radar threat, at least one countermeasure previously verified as effective against a partially matching known threat can be selected as the candidate countermeasure. Correlated parameters can be simultaneously varied.

Abstract: The system and method for chromatic correlation interferometry direction finding (CIDF) used to resolve ambiguities. Ambiguities are overcome by correlating over a range of frequencies. In some cases, multiple (i.e., 2 or more) frequencies or a continuous range of frequencies are used to make a more robust correlation manifold. As the complex response manifold is frequency dependent, using a set of two or more manifolds provides a significant reduction of false peaks.

Abstract: An athermalized Short-Wave InfraRed (SWIR) telephoto lens for a tracking camera having, in order, from a remote object to an image plane an aperture stop, a first optical element having a first element first surface radius of 23.21 mm, a first element second surface radius of 46.25 mm, a second optical element having a second element first surface radius of 22.72 mm, a second element second surface radius of 45.58 mm, a third optical element having a third element first surface radius of ?56.85 mm, a third element second surface radius of 16.65 mm, where the lens is corrected over a spectral waveband of 1.5 ?m to 1.6 ?m from ?10 C to +65 C, has a length from the first element to the camera of 88 mm, has a telephoto ratio of 0.367, has an F# of 24, and has a focal length of 240 mm.

Abstract: A custom transport jumper utilizing local CORBA protocols to intercept message data before the data is marshalled into a CDR package. The custom transport jumper may then utilize the CORBA standard to allow communication between systems on different operating systems, in different programming languages, and/or on different computing hardware while allowing messages to be sent in a more efficient, more portable, and more easily policed manner.

Abstract: An alignment system for sensor or other electrical device filters rate data from gyroscopes and integrates the same to determine an alignment error state that is populated into a direction cosine matrix that pre-rotates measurement from a first electrical device into an estimated coordinate frame to determine a static alignment between first and second electrical devices or sensors. The system may be part of a countermeasure system on an aircraft. A first electrical device may be an inertial navigation system (INS), and a second electrical device may be an inertial measurement unit (IMU). The attitude of the IMU is used to translate the detected threats from the countermeasure system into a common reference frame of the INS.

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. This system and method uses multi-static RADAR interferometric methods implemented via a microsatellite formation to synthesize an effectively large (e.g., 15 m when using the Ku RF band) aperture to provide about 1 km horizontal resolution and about 125 m vertical resolution.

Abstract: Techniques are provided for laser illumination employing closely spaced laser beams. A system implementing the techniques according to an embodiment includes a semi-cylindrical optical block comprising a curved surface and a planar surface. A first laser source to generate a first laser beam directed to the planar surface, wherein the first laser beam enters the optical block at a first angle that exceeds a critical angle, relative to the planar surface, the critical angle causing total internal reflection, such that the first laser beam is refracted through and exits the optical block.

Abstract: An underwater imaging system is carried by a submersible platform to capture images that are processed into three-dimensional images stitched together to create a 3D dimensional video at video rate speeds that are transmitted to a control unit above the surface of the water. The imaging system utilizes a high speed image sensor or camera to capture sequential gated images that are synced via a gating module to two sequential laser beam pulses. The laser beam pulses illuminate an object in each gated image. When the object is within a gate overlap region, the two images may be processed using 3D imaging techniques to generate a 3D representation of the object in the overlap region of the two gates.

Abstract: An on-chip firewall circuit for providing secure on-chip communication is disclosed. The firewall circuit includes a configurable table of port IDs along with a configurable setting for each port ID to either provide the corresponding port ID with open access to the components of a secure enclave (SE) module or restricted access. If access is restricted, then the command is rerouted to a portion of the secure memory within the SE module, where it can be read only via a secure processing device within the SE module. The secure processing device may require additional verification of the port ID before executing the command stored within the secure memory. In this way, unsecure devices from outside of the SE module can be configured to have no direct access to any of the components within the SE module.

Abstract: A radio frequency (RF) receiver includes a transceiver, a programmable logic device (PLD), and a digitally tunable high-pass and low-pass filter bank. The transceiver is configured to receive a mission data file (MDF) specifying a plurality of RF frequencies to be tuned by the receiver and to convert the MDF into a binary file. The PLD is configured to receive the binary file from the transceiver and, based on the binary file, to transmit one or more commands that cause the filter bank to enter a selected one of a plurality of predefined filter states corresponding to one or more of the RF frequencies. In operation, the receiver receives an input signal and the filter bank dynamically filters the input signal in response to the one or more commands from the PLD.

Abstract: Techniques are provided for a delay compensated analog beam forming network. A transceiver implementing the techniques according to an embodiment includes an array of circuit elements. Each of the circuit elements includes an analog frequency converter to up-convert an analog signal to radio frequency (RF) for transmission and to down-convert an RF signal to an analog signal for reception. The circuit element also includes an analog beam weighting circuit configured to apply a beam weight to both of the analog signals to form a beam for transmission and reception. The circuit element further includes an analog delay element configured to impart a time delay to the analog signals. The time delay is based on the position of the circuit element in the array and is selected to compensate for propagation delay of the analog signals along the electrical path that couples the circuit elements of the array, reducing beam squint.

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: A laser transmission assembly for shearography and related systems utilizing transmissive geometric phase plate pairs in place of Risley prism pairs or movable mirrors therein. Transmissive geometric phase plates provide for a system that is more compact than systems utilizing mirrors or Risley prism pairs while maintaining or improving the adjustability of the system and further offering beamshaping to provide desired illumination patterns.

Abstract: A multi-bit, asynchronous e-fuse macro, the macro comprising: the following inputs: an input output enable, a power on reset, a write address, an input write enable, a ground clamp enable, and a write clock; a plurality of e-fuse bits; a supply voltage configured to allow programming at least one of the e-fuse bits; at least one fuse output; and self-timing and control circuitry configured to perform signaling, wherein each of the inputs is in electrical communication with said e-fuse macro.

Abstract: A dynamic controlling framework that is adapted to dynamically optimize existing routing decisions in an optimized link state routing (OLSR) platform to favor higher-bandwidth, lower-latency links in the active link database. The dynamic controlling framework includes a link probing tool that is in communication with OLSR platform where the link probing tool is adapted to dynamically measure estimated bandwidth, latency scores, or both estimated bandwidth and latency scores of active links in the active link database of the OLSR platform. The dynamic controlling framework includes a plug-in framework that is in communication with the OLSR platform and the link probing tool where the plugin framework is adapted to receive at least one link quality multiplier (LQM) metric computed by the link probing tool and to combine the at least one LQM metric with the OLSR platform's existing link quality (LQ) metric for enhancing route selection by the OLSR platform.

Abstract: The system and method for a scalable optically pumped CO2 laser. The optically pumped CO2 laser having a Tm fiber laser configured to pump a Q-switched Ho laser that is configured to pump a molecular isotopologue mix of CO2 above atmospheric pressure, to produce a broadband, high energy, tunable output beam.

Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.

Abstract: Techniques and architecture are disclosed for a wireless fuze setter interface, comprising an electronics subsystem comprising a plurality of ports and a plurality of output interfaces having a common interface with the plurality of ports on the electronics subsystem. The plurality of output interfaces comprises an electrical energy transfer zone configured to provide electrical energy to the fuze, and a high speed data communications zone configured to transfer fuze setting data to the fuze. The wireless fuze setter interface provides fuze setting capability without the need for rotational or other physical alignment between the fuze and the fuze setter.

Abstract: A transducer system comprising a housing, an electromechanical transducer within the housing, a wicking material adjacent to a portion of the electromechanical transducer, and a multi-phase coolant solution within the housing. The multi-phase coolant solution transitions from a first phase to a second phase in response to a temperature of the electromechanical transducer exceeding a threshold temperature. In some example cases, the multi-phase coolant solution has a boiling point of less than about 60° C., which effectively defines the threshold temperature. The multi-phase coolant solution may be chosen such that it remains a liquid during a first phase (cooling via conduction), and then evaporates during a second phase (cooling via conduction and convection) as the electromechanical transducer heats up.

Abstract: A method is provided for localizing an underwater vehicle using acoustic ranging. The method includes receiving, using an acoustic receiver, a time series signal based on one or more acoustic signals transmitted from an acoustic source having a known location; determining a travel time of the waveform from the known location of the acoustic source to the acoustic receiver; and determining a range of the underwater vehicle with respect to the acoustic source based on the travel time of the waveform and a sound speed field taken along a ray trajectory extending from the known location of the acoustic source and intersecting with the acoustic receiver at an expected arrival time and depth of the acoustic signal at the underwater vehicle.