Abstract: A guidance kit for a projectile and method for suppressing a point-of-interest (POI) at a desired location away from the POI. The guidance kit includes at least one processor in the guidance kit. The guidance kit also includes a guidance protocol operatively in communication with the guidance kit and the at least one processor and having a set of angular offset modes. The guidance protocol of the guidance kit is configured to guide the projectile to at least one location relative to a desired point-of-interest (POI) upon or in response to activation of at least one angular offset mode of the set of angular offset modes.

Abstract: Correlation interferometry direction finding (CIDF) processes that significantly improve processing time and cut memory requirements relative to the current memory requirements are provided herein. The presently disclosed processes further may utilize only the real portion of the correlation coefficient of the RF signal to further increase processing speed and decrease memory requirements while simultaneously improving direction finding accuracy and reducing the number of wild bearings reported.

Abstract: Techniques are provided for a multi-frequency sampling system. A system implementing the techniques according to an embodiment includes a first bandpass filter to filter a radio frequency (RF) signal to generate a first filtered signal in a first frequency band, and a second bandpass filter to filter the RF signal to generate a second filtered signal in a second frequency band. The system also includes a first analog to digital converter (ADC) operating at a first sampling frequency to convert the first filtered signal to a first digital signal and a second ADC operating at a second sampling frequency to convert the second filtered signal to a second digital signal. The first frequency band is selected to avoid a first Nyquist boundary zone associated with the first sampling frequency and the second frequency band is selected to avoid a second Nyquist boundary zone associated with the second sampling frequency.

Abstract: A modular electronic warfare (EW) framework that is implemented into a first preexisting EW system with associated hardware and firmware to leverage the capabilities of the first preexisting EW system into a second, different preexisting EW system with associated hardware and firmware. The modular EW framework includes a tracking framework and a logic framework. The tracking framework is configured to receive a first set of objects from a preexisting EW system and augments the first set of objects with at least one parameter and outputs the second set of objects. The logic framework is configured to receive the set of second objects from the tracking framework and implements at least one process onto the second set of objects and outputs a third set of objects. A multi-core processor is used to operate the modular EW framework.

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: A sealing arrangement having at least two seals for providing a sealing force against a rotating shaft in underwater applications. A replaceable fin assembly comprising a cartridge and a control fin for manned and unmanned underwater vehicles having the sealing arrangement.

Abstract: A digital radio includes an input configured to receive an input signal and an analog-to-digital converter (ADC) configured to sample analog data in the input signal into a digital input signal. The digital input signal has first digital data encoded at a first data rate modulated at a first frequency. The digital radio further includes a signal processor configured to generate, based on the digital input signal, a digital output signal having second digital data encoded at a second data rate modulated at a second frequency. The first data rate is different from the second data rate and/or the first frequency is different from the second frequency. The digital radio further includes an output configured to provide the digital output signal to a target device, where the second data rate and the second frequency match a frequency plan of the target device.

Abstract: A thin film-retaining washer with custom geometry that may further provide for a simple press-on installation while maintaining retention of fasteners during assembly, shipping, handling, and/or use of associated systems. The present retaining hardware is easily manufactured from sheet or film materials with minimal post-processing and may be scaled and optimized for use with multiple size and style of fasteners. Further, the thickness profile of the thin film retaining hardware facilitates lobe spring deflection to further provide secure retention of the associated fasteners.

Abstract: A method of recognizing a pattern in a signal is provided. The method includes receiving, by a processor and at an input, the signal comprising data; converting, by the processor and based on a plurality of features, the data from the signal into a collection of features; identifying, by the processor, one or more feature-to-feature transitions between features in the collection of features; plotting, by the processor, a directed graph of each of the feature-to-feature transitions, wherein each unique feature in the collection of features is represented by a single vertex and each feature-to-feature transition is represented by a directed edge between two vertices weighted by a corresponding number of each of the feature-to-feature transitions; and detecting, by the processor, a pattern in the data by comparing the weight of each of the feature-to-feature transitions in the directed graph to a user-defined threshold.

Abstract: A content based video organization, prioritization, and retrieval system and method utilizes metadata contained or included with or inferred from image frames of a video stream obtained from a sensor carried by a platform. The metadata are indexed and stored for processing to automatically create workflows depicting resultant images of a target, object, or location of interest. The workflows can be incorporated with a representation or graph based on the metadata that is time agnostic with respect to when the image frame containing the metadata was obtained by the sensor.

Abstract: Predicting whether objects in an image form a scattered minefield (SMF) is accomplished by a system and method utilizing at least one non-transitory computer readable storage medium having instructions stored thereon. When the instructions are executed by a processor, the instructions implement operations to determine whether the objects define a SMF based on an estimation of a distribution process from which the MLOs are positioned on the surface in the image obtained from the image sensor.

Abstract: A transceiver unit includes an enclosure, a first input port, a second input port, a first output port, and a second output port. A radio frequency (RF) pass-through path is within the enclosure between the first input port and the first output port and includes a gain module. The RF pass-through path is configured to receive a first RF signal at the first input port and to transmit a second RF signal at the first output port. The gain module is configured to amplify the first RF signal to produce the second RF signal. The transceiver unit further includes a transceiver path within the enclosure between the second input port and the second output port, the transceiver path including a signal processor.

Abstract: An isolator, the isolator comprising an isolator comprising a lower isolator post and an upper isolator post; an isolator compression disk configured to be secured to the upper isolator post; and at least three gaskets configured to be retained, in use, between an upper face of the isolator and a lower face of the isolator compression disk, wherein the lower isolator post, in use, is configured to be affixed to a first apparatus, wherein the upper isolator post is configured to be inserted through an aperture of a second apparatus, wherein the isolator compression disk is configured to retain the second apparatus against the isolator, and wherein the at least three gaskets are configured to prevent any direct contact between the isolator and the second apparatus.

Abstract: A platform with an auto-router takes into account non-navigation data, such as IR image sensor data or other non-navigation data to develop a route for a platform. The non-navigation data may be obtained from existing non-navigation sensors carried by the platform. The non-navigation data is fed to an auto-router that takes into account the non-navigation data to generate or dynamically alter a route for the platform.

Abstract: The present disclosure provides a system and method for determining a range to an object in a fluid. The system includes a polarized light source directed to the object in the fluid, a first imaging sensor, a second imaging sensor, and at least one processor. The at least one processor characterizes a depolarization rate of the fluid and determines the range to the object. The method includes generating polarized light via a polarized light source, polarizing an imager relative to the polarized light, transmitting the polarized light from the polarized light source into the fluid, receiving reflected light from the object, characterizing a depolarization rate of the fluid, based, at least in part, on the reflected light, and determining the range to the object, based, at least in part, on the depolarization rate of the fluid.

Abstract: An optical assembly includes a plurality of polarizing beamsplitters (PBS) including a first PBS and a second PBS. Each PBS includes a similar splitting optical coating. The splitting optical coating on the second PBS is oriented as rotated 90° relative to the splitting optical coating on the first PBS. There may be a third PBS offset to another side of the first PBS. The splitting optical coating on the third PBS, which is similar to the splitting optical coating on the first PBS and the second PBS, is oriented as rotated 90° relative to the splitting optical coating on the first PBS. The splitting optical coatings on the second PBS and the third PBS may be oriented in the same direction. A beamsplitting assembly may be formed from the optical assembly by coupling image sensors to major surfaces of the second PBS and the third PBS.

Abstract: A transimpedance amplifier system (TIA) for stabilizing high gain and high frequency signals while minimizing parasitic capacitance effects on the transimpedance amplifier system. The TIA includes an operational amplifier having a first input terminal, a second input terminal, and an output terminal. The TIA also includes a signal generating device operatively connected with the first input terminal of the operational amplifier. The TIA also includes a T-network feedback architecture operatively connected with the operational amplifier at the first input terminal of the operational amplifier and the output terminal of the operational amplifier. The T-network feedback architecture has a first impedance network and a second impedance network. The T-network feedback architecture is configured to suppress parasitic capacitance from the transimpedance amplifier system.

Abstract: A cognitive scheduler and asset allocation system to optimize electronic warfare (EW) resource allocation in reaction to RF signals observed in real-time without the need for prior collected data and without a predetermined scan schedule. The EW system of the present disclosure may further provide optimum resource allocation to minimize response time and to more effectively react to agile threat systems in an area of operations.

Abstract: Nosecone and tailfin designs for aerodynamic systems are disclosed. The designs increase the usable volume within the fuselage of the aerodynamic system while still maintaining the same length for the aerodynamic system. In an example, the nosecone is truncated and includes a blunted tip compared to standard nosecone designs, which allows for more useable space along the length of the aerodynamic system. A tailfin structure is fabricated as a separate piece (separate from the fuselage of the aerodynamic system) and slips over a portion of one end of the fuselage, thus allowing useable volume within the fuselage beneath the tailfin structure. The tailfin structure also includes a hollow cavity for holding componentry (e.g., an RF transmitter, receiver, or transceiver device) with wires that feed through the tailfin structure and into the fuselage of the aerodynamic system.

Abstract: The system and method of spin stabilizing a guided munition where a motor provides necessary de-spinning torque. The despun PGK portion of a guided projectile is already at high rate of spin relative to the projectile body and the motor is operated to maintain that rate.