Abstract: A coaxial three-phase servo motor power cable is comprised of a shielded twisted triple cable which transmits three phase electrical power from a servo amplifier to a servo motor, with the shield being electrically insulated and mechanically floating within an air void that exists inside a conduit having a diameter much greater than the shielded twisted triple cable. The conduit is covered by a braid shield, which is covered by shrink tubing which may be overlaid by one or more additional signal wires, with this entire assembly being further covered by an over braid shield, which is covered by an outer insulating sheath. Both the conduit braid shield and over braid shield are electrically terminated to back shells at each end of a cable assembly.

Abstract: A stackable horn configured such that a plurality of substantially identical horns can be stacked to form an array. Each horn diminishes in interior area from a mouth to a throat thereof and is vertically taller and longitudinally deeper than it is wide. The horn or array may be secured to a support. In the array, the horns are similar or identical and are arranged side-by-side with a space in between or in abutting contact. An aperture is defined in the throat of each horn and a microphone is positioned within the throat of each horn in the array. The arrangement of horns in the array permits beamforming and as a result allows simultaneous detection, tracking, and identification of multiple targets. Listening distance is greatly increased by utilizing the horn or the array of horns.

Abstract: An RF power amplifier includes an input coupler including a first resistor and a first capacitor, an input phase difference network of the input coupler including a first input direct current (DC) bias injection network and a second capacitor connected in series with the first resistor. The second capacitor increases a bandwidth of the RF power amplifier. The RF power amplifier may further include a first power amplifier and a second power amplifier. The first input DC bias injection network provides power to the first power amplifier and the second power amplifier. The RF power amplifier includes a lateral dimension narrower than a lateral dimension of an RF power amplifier comprising bias circuitry on two opposing sides.

Abstract: An active receiver having a digital-pixel focal plane array (DFPA) ranges a target when observing return pulses from a pulsed laser beam synced with the receiver. The DFPA establishes a time when the pulsed laser beam contacts a target and the range can then be established because the speed at which the laser beam travels is known. Various basis functions may be implemented with the DFPA data to establish when the laser beam contacts the target. Some exemplary basis functions are binary basis functions, and other exemplary basis functions are Fourier basis functions.

Abstract: A power supply for a gate driver circuit is provided. The power supply is configured to supply a logic voltage, a positive voltage and a negative voltage to the gate driver circuit such that a gated semiconductor driven by the gate driver circuit does not inadvertently turn on. The gate driver power supply is configured such that the logic voltage becomes a steady-state voltage prior to the positive voltage becoming a steady-state voltage and remains above a first voltage value until the positive voltage is less than a second voltage value.

Abstract: A method of detecting electromagnetic signal sources of interest includes applying reinforcement learning to automatically and continuously update a receiver scan schedule wherein an agent is reinforced according to comparisons between expected and actual degrees of success after each schedule update, actual degrees of success being estimated by applying to signal data a plurality of value scales applicable to a plurality of reward classes. An exponential scale can be applied across the plurality of reward classes. A companion system can provide data analysis to the agent. The agent can include an actor module that determines schedule updates and a critic module that determines the degrees of scanning success and awards the reinforcements. Embodiments implement a plurality of agents according to asynchronous multiple-worker actor/critic reinforcement learning.

Abstract: The present disclosure relates to a system and method for verifying a diopter setting and range of an optical system eyepiece by utilizing an image sensor to view and analyze test patterns of spots displayed within the optical system eyepiece and calculating the diopter setting and range of the optical system eyepiece from an observed change in the test pattern at different diopter settings.

Abstract: A method for predicting subject trustworthiness includes using at least one classifier to predict truthfulness of subject responses to prompts during a local or remote interview, based on subject responses and response times, as well as interviewer impressions and response times, and, in embodiments, also biometric measurements of the interviewer. Data from the subject interview is normalized and analyzed relative to an experience database previously created using data obtained from test subjects. Classifier prediction algorithms incorporate assumptions that subject response times are indicators of truthfulness, that subjects will tend to be consistently truthful or deceitful, and that conscious and subconscious impressions of the interviewer are predictive of subject trustworthiness. Data regarding interviewer impressions can be derived from interviewer response times, interviewer questionnaire answers, and/or interviewer biometric data.

Abstract: A method for providing a power estimation for an electronic system is disclosed. Initially, a system architecture of an electronic system design is initially developed, and the system architecture of the electronic system design is then converted to a power flow architecture of the electronic system design. For each power domain within the power flow architecture of the electronic system design, a power domain type is designated. Subsequently, power information are added to the power flow architecture of the electronic system. Finally, a power roll-up calculation is performed on the power flow architecture of the electronic system design in order to yield a final system power value for the electronic system design.

Abstract: Systems and methods for reducing a likelihood that an engine exceeds its torque or power limit at a specific speed are provided. Also provided are systems and methods for reducing a likelihood that DC-DC converters and AC inverters overload a generator at a specific speed.

Abstract: A lasercom coefficient of thermal expansion (CTE)-matched optical bench, with optional star-tracker capability, that includes a Transmitter (TX) fiber collimator creating a Gaussian beam from a singlemode (SM) or polarization maintaining (PM) fiber; a tiltball directly bonded to the optical bench, the tiltball performing centration of a TX beam with a telescope optical axis; a TX beam diverger creating a wide beam for acquisition, and a narrow beam for tracking and communications; a Point-Ahead Mechanism/mirror; a polarization diplexer cube or dichroic filter(s) separating TX and Receiver (RX) beams of opposite polarization and/or different wavelengths, wherein the polarization or dichroic and anti-reflective coatings are compatible with the adjunct star tracker; a fast-steering mechanism and mirror having a common-path to TX and RX; a RX optical passband filter; the RX optical passband filter having a flipper mechanism allowing for selecting the passband of the star-tracker or the RX passband.

Abstract: A long range electromagnetic radiation sensor apparatus comprising a sensing system for receiving electromagnetic radiation signals from an object or area of interest and at least one electromagnetic radiation sensor, the apparatus further comprising an electromagnetic radiation source and a control system configured to cause electromagnetic radiation from said source to be applied to a selected plurality of three-dimensional portions of an atmospheric volume between said optical system and said object or area of interest (204) so as to heat and/or ionise the air within said portions, wherein said selected portions are spatially located together in a three-dimensional configuration so as to simulate an electromagnetic radiation path modifying device (202) for capturing said electromagnetic signals from said object or area of interest and directing and/or converging said captured signals toward said electromagnetic radiation sensor of said sensing system.

Abstract: A holographic, single-unit, augmented sight has a housing containing a see-through holographic eyepiece; at least one of a visible light digital camera and an LWIR digital camera; a display to display an image from the camera(s); a shutter presenting the display; a red dot fiber-coupled LED reticle assembly using a spherical ball configuration sandwiched between two matching seats which are compressed together to contain the spherical ball configuration optical position; and a lever attached to the spherical ball configuration to rotate the ball by moving the lever up/down, left/right to adjust windage and elevation; a lower coupling prism presenting the reticle of the reticle assembly.

Abstract: An imaging array and method for using the same are disclosed. The imaging array includes a plurality of pixel sensors connected to a bit line, each pixel sensor includes a photodetector that includes a photodiode, a floating diffusion node, and a buffer connected to the floating diffusion node that produces a pixel output signal having a voltage that is a monotonic function of a voltage on the floating diffusion node. Each pixel sensor also include an overflow capacitor connected to the photodiode by an overflow transfer gate that allows photocharge in excess of a predetermined charge to flow onto the overflow capacitor. The charge accumulated on the photodiode and the overflow capacitor are combined to provide an improved dynamic range for the pixel sensors.

Abstract: A nondestructive system and method for high resolution thermal imaging in metal casting applications is provided to detect defects and starts with the article under test being subjected to a thermal gradient, followed by infrared images taken thereof. The creation of the thermal gradient results in any defects reacting differently to the thermal gradient application to accentuate the defect in the infrared image. The apparatus for conducting the tests in one embodiment includes a single channel sensor, remote cable, and a laptop controller with real time image processing software. This hardware provides high resolution, real-time viewable infrared (IR) images with a variable focus distance adjustable from six inches to infinity. The apparatus enables crisp, clear imagery of various metal casting defects.

Abstract: A device, system, and method for shaping the trajectory of a projectile employing a Gravity bias, Gbias. The system includes a seeker, a guidance filter, a pitch rate filter, an actuator, pitch/yaw/roll coupled aerodynamics, and lateral rate sensors. It receives roll orientation input to a guidance and control autopilot; it applies Additional Gbias to that produced by the null rate command to the lateral control loops of the guidance and control autopilot device. The lateral rate command is equal to the desired Additional Gbias divided by an estimate of the projectile velocity. The Additional Gbias is translated to a rate command and incorporated into guidance loop commands to boost an Inherent Gbias to shape the trajectory of the projectile to the target.

Abstract: An imaging array having a plurality of pixel sensors connected to a bit line is disclosed. Each pixel sensor includes a capacitive overflow pixel sensor characterized by an overflow capacitor having a switching terminal, and a floating diffusion node, a buffer amplifier that connects the floating diffusion node to a bit line in response to row select signal, and a switch that connects the switching terminal to either ground or a boost voltage. The imaging array also includes a switch controller that controls the switch and is connected to the bit line, the switch controller determining a voltage on the bit line, the switch controller connecting the switching terminal to the boost voltage during an exposure of the pixel sensor to light and to either ground or the boost voltage during a readout of charge stored on the overflow capacitor depending on the voltage on the bit line.

Abstract: A system for testing lightning pin injection Tests (indirect lightning effects) simultaneously on multiple pins of an equipment under test (EUT). A plurality of impedance-balancing elements which receive the source signal and generate multiple test input signals. Respective impedance-balancing elements are configured such that each of the test input signals meets test signal requirements defined in a test scenario. The multiple test input signals are output through the impedance-balancing elements, which serve to provide a balanced current at each individual corresponding pins of the EUT under test, when the test on the EUT begins.

Abstract: A projectile detection technique is disclosed. The technique helps improve the self-defense capabilities of strategic platforms such as naval ships against asymmetric threats such as anti-ship missiles (ASMs). These threats can be particularly challenging in a highly cluttered maritime environment, where the threats can be too close for radar to accurately detect. In one example, the projectile detection technique automatically detects ASMs flying above the horizon by using mid-wavelength infrared (MWIR) and visible/near-infrared (VNIR) camera systems, and locating the horizon line and segmenting the imagery into different regions. Projectiles are detected in the near-horizon segment using a Fourier phase-only transform and convolution matched filters to enhance exceedances, then applying multi-frame processing to measure persistence and scintillation (e.g., flicker from missile exhaust) to help filter out background clutter objects.

Abstract: A system and method for rank estimation of electromagnetic emitters is provided. One aspect of the disclosure provides creating a graph of angles of arrival (AoAs) versus range and using a polynomial curve fit against the graph to determine a rank estimation of electromagnetic emitters. Another aspect of the disclosure provides using a search over parameters of the multiple polynomial curve fits, for each hypothesized rank, to optimize the rank estimation results. This search may be a greedy search to improve speed of convergence. Another aspect of the disclosure provides a metric ‘score’ to select the highest probability rank (number of emitters) based on the agreement between the multiple polynomial curve fits and residual AoA errors.