Abstract: A heat exchanger comprising: a core comprising first fluid channels, for guiding a first fluid, wherein each of the first fluid channels comprises a plurality of spur conduits interconnecting with at least one of another of the first fluid channels; a manifold for first fluid input comprising an input port which communicates with an input chamber for a first fluid, the chamber branching to form a plurality of first-fluid core-input channels; and a manifold for first fluid output comprising a plurality of first-fluid core-output channels which lead into an output chamber communicating with an output port, wherein each first fluid channel in the core communicates between a respective first-fluid core-input channel and a respective first-fluid core-output channel.

Abstract: Techniques are provided for non-volatile detection of an overvoltage condition in a circuit of interest. A circuit implementing the techniques according to an embodiment includes a fuse configured to provide a non-volatile indication of an overvoltage event, the indication associated with an open state of the fuse. The circuit also includes a voltage controlled current switch coupled in series to the fuse. The voltage controlled current switch is configured to enable current flow through the fuse in response to a supply voltage exceeding a threshold value associated with the overvoltage event. The current causes the fuse to switch from a closed state to an open state providing a non-volatile record of the overvoltage event. In some embodiments, the voltage controlled current switch can be a Zener diode with a breakdown voltage based on the threshold value, or a transistor configured to switch into conducting mode at the threshold value.

Abstract: A low-noise amplifier is disclosed. The amplifier includes a signal amplifier having an amplifier signal output, a first filter capacitor, a buffer amplifier having a buffer amplifier input and a buffer amplifier output; and a switching network. The first filter capacitor has first and second terminals. The second terminal is connected to a power rail. The amplifier signal output is connected to the buffer amplifier input by a first direct current path and the buffer amplifier output to the first terminal of the first filter capacitor by a second direct current path during a first time period. The amplifier signal output is connected directly to the first terminal of the first filter capacitor by a third direct current path during a second time period, and the amplifier signal output to the first terminal of the first filter capacitor through a resistor during a third time period.

Abstract: The present invention provides a vehicle (100) comprising: a body (4) having a skin; a heat source (12); and a thermal management system. The thermal management system comprises: a heat pipe (14) comprising: an evaporator end (close to 12) and a condenser end (close to heat exchanger 22a, 22b); a vapour arranged to flow from the evaporator end to the condenser end; and a working fluid arranged to flow from the condenser end to the evaporator end, wherein the heat pipe (14) is arranged such that the evaporator end is arranged in proximity to the heat source to absorb heat from the heat source; and one or more heat exchangers arranged in proximity to the condenser end and integrated with the skin. The present invention also provides a method of managing temperature in a vehicle.

Abstract: The system and method for decoupling algorithms from a Mission Data Tool suite, or the like, into a scalable, modular and multithreaded tool set callable from a variety of environments. The system generates data objects representing inputs, outputs and field validation capable of being accessed from a framework callable from Java or C#, for example. Data objects are defined in an abstract Independent Definition Language (IDL) and the objects are then generated into the target languages for use by a software component's application programming interface (API). The resulting generated code may also contain serialization/deserialization routines needed for object transfer between different systems in a seamless manner. In some cases, transfer of the objects, algorithmic generation of data into the objects, and the transfer of outputs back to the calling system is possible with minimal overhead and interaction on either end.

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: An RF frequency tuning-in-silicon photoconductive-switch-based high power microwave system including a cradle; a transmission line proximate the cradle; a photosensitive silicon material switch component also proximate the cradle; a laser light source having a varied illumination incidence location on the photosensitive material; and a laser alignment component providing the location of the illumination incidence location on the photosensitive material; whereby the inductance of the switch varies as a function of the incidence location of the illumination on the photosensitive material.

Abstract: The system and method for accurately determining range-to-go for the command detonation of a projectile. Using dual laser and/or radio frequency detectors on the tail and on the nose of a spinning projectile to determine the range-to-go, time-to-go, or lateral offset from the projectile to the target.

Abstract: A navigation path planning method includes receiving an initial position of a navigation path and a terminal position of the navigation path. The initial position represents a current position of a vehicle or other platform that is navigating to the terminal or target position. The method includes calculating the navigation path from the initial position to the terminal position as an objective function of a navigation reliability term and a navigation accuracy term. The navigation reliability term represents a probability of successfully reaching the terminal position along the navigation path, and the navigation accuracy term represents the probable distance between the terminal position and the navigation path. The calculated navigation path is provided to a navigation system to cause the platform to navigate along the calculated navigation path.

Abstract: A payload mechanism for a vehicle is provided.

Abstract: A multiport splitter with a circuit that is less costly, smaller, impedance matched on all ports, provides 9.54 dB isolation between neighboring ports, and is balanced as compared to the current typical implementations. The present disclosure may further provide a single multiport splitter that may be increased to any suitable number of output ports without the need for cascading multiple splitters and/or couplers together in a single device.

Abstract: The system and method for combining two optical assemblies into the same volume, particularly when the field of view of the two assemblies are different, so that the overall volume and size, weight and power (SWaP) for the system is reduced. This also allows both subsystems (e.g., narrow field of view (NFOV) and wide field of view (WFOV) to use a single aperture and the same external protective window, reducing overall cost for a system of co-located dissimilar optical systems in a single aperture.

Abstract: A method and apparatus for performing shearography where the shear length and direction can be set in image processing, thus allowing all shear sizes to be computed and tested from a single data set, which can be collected in a single pass over a test surface or test object. The present process assures that a single data set can be processed with optimal shear length for multiple target types, thus reducing or eliminating the chance of missing a target detection while additionally enhancing target shape analysis by allowing the calculation of target response versus shear length and shear direction.

Abstract: The system and method of externally powered cold key load injects a voltage into a cryptographic computer without disturbing any data pins. There are several mechanical approaches that are viable, a Y cable implementation, a two cable solution, a direct connect solution, and more. The system includes the ability to provide a variable voltage power source to the cryptographic computer.

Abstract: An integrated architecture and its associated sensors and processing software subsystems are defined and developed allowing a conventional unguided bullet to be transformed into a guided bullet without the use of an on-board inertial measurement unit (IMU). Some important SW components of the present disclosure include a target state estimator (TSE); a bullet state estimator (BSE); Multi-Object Tracking and Data Association; NTS GL; and a Data Link. Pre-conversion of two angles and range information of an OI sensor from spherical coordinates into Cartesian coordinates eliminates the Jacobian dependency in the H matrix for the BSE, thus increasing the miss distance performance accuracy of the bullet target engagement system.

Abstract: A storage system is configured to facilitate memory operations with the memory that avoid the need for defragmentation. The system includes one or more memory devices and a memory interface operatively coupled with the one or more memory devices. The memory interface includes a start page module that provides a start page table having a page number that includes a first part of a corresponding dataset. A link page module of the memory interface provides a link page table that indicates an address for a current page of a given dataset and an address for a next page of the given dataset. Write/read page modules of the memory interface provide write/read page tables that include sub-addresses of a page where a portion of a corresponding dataset is being written/read. The memory interface executes data read, write, and erase operations that are tracked using the tables provided by the various modules.

Abstract: A system and method for suppressing aperture noise resulting from clock jitter associated with a Nyquist analog-to-digital converter (ADC) using self-referred time measurements are provided. The system comprises of a clock, a delay element, a time subtractor, a time-to-digital converter, a filter element, a first digital subtractor, an integrator, a differentiator, and a multiplier. Each of the delay element, time subtractor, time-to-digital converter, filter element, first digital subtractor, integrator, and multiplier is electrically connected in parallel with the ADC, which allows the clock to generate a clock signal that advances into the system and the ADC in order to isolate and suppress the noise aperture associated with the ADC. As such, the architecture of the system is configured to isolate and suppress aperture noise resulting from clock jitter associated with an analog-to-digital converter (ADC) to allow the output signal of the system be independent of the aperture noise.

Abstract: At least one encoder processor of a simulator data processing system receives simulator data from a plurality of simulators comprising a plurality of video data, including first and second data having different frame rates, and non-audio/visual data, and outputs a respective plurality of compressed video streams. A scheduler of the at least one encoder processor uses frames of the video data to generate scheduled items, specifies a frame rate for capturing the frames, and generates encoded data based on the compressed video streams and the non-audio/visual simulator data. At least one further processor receives, decodes, and processes the encoded data. The at least one further processor executes a media player/renderer application that processes the compressed video streams and displays on the display a plurality of the decoded video data are simultaneously displayed on a display at the specified frame rate, together with information based on the non-audio/visual simulator data.

Abstract: A system for finding up in a projectile flight relative to earth. The system having a transmitter which transmits polarized reference signals to a guidance sub-system on the projectile. The guidance sub-system includes a magnetometer and polarized and non-polarized receivers. Measurements from the magnetometer are used to determine a general up direction. The polarized and non-polarized receivers are arranged such that, during rotation of the projectile, reference signals received by the polarized receiver modulate whereas reference signals received by the non-polarized receivers are unaffected. A ratio of the strengths of the signals received by the polarized and non-polarized receivers determines alignment of a vertical axis. From the general up direction and alignment of the vertical axis, a precise up direction of the projectile in flight relative to the earth can be determined.

Abstract: Techniques are disclosed for providing information sharing with enhanced security. In an embodiment, a secure information sharing engine provides secure sharing of data by applying one or more validation rules to the data. When applied to a given portion of the data, the validation rule verifies that the data of the given portion is, in fact, the data that is supposed to be in the given portion. At least one of the validation rules includes a check that a portion of the data contained in multiple fields maintain a relationship between the multiple fields. If the data passes the applied one or more validation rules, the secure information sharing engine allows the sharing of the data. Otherwise, if the data does not pass the one or more applied validation rules, the secure information sharing engine disallows the sharing of the data.