Abstract: A cross axis cable management system comprising a bird cage mechanism, a clock spring mechanism and a rolling loop mechanism positioned about a first axis, second axis and third axis of a gimbal mechanism respectively. Each mechanism provides defined channels and protective elements to prevent cable damage. The mechanisms also have one fixed end, one rotational end, and an optimized amount of slack for repeatable cable motion. The system effectively manages a large number of conventional and fiber optic cables while minimizing the friction or drag associated with the motion about the multiple axes and preventing cable damage and the resultant loss of performance.

Abstract: A system is provided for extending the shelf life capacity of a coin cell, the system utilizing a coin cell; a voltage step up converter/regulator, configured to step up the voltage of output from the coin cell and the storage capacitor; and a storage capacitor receiving output from the voltage step up converter/regulator.

Abstract: Techniques are disclosed for producing and/or optimizing jamming codes for use in directional infrared countermeasures (DIRCM) systems. In some embodiments, Fourier analysis may be implemented to produce jamming codes which more efficiently (e.g., time efficient, power efficient) and/or more reliably (e.g., no frequency gaps) achieve optical break-lock (OBL) of infrared (IR)-seeking missiles/threats over a broad range of frequencies (e.g., short-wavelength IR, mid-wavelength IR), as compared to heritage jamming code methodologies. Some embodiments may be implemented in military/defense applications (e.g., protection of military/tactical aircraft or other vehicles); some other embodiments may be implemented in non-military/commercial applications (e.g., protection of domestic, civilian, and/or commercial aircraft or other vehicles).

Abstract: Exceptionally crisp infrared images are provided by a binocular infrared imaging system for close in focusing that simultaneously directs the center lines of the optical channels to a close in point while at the same time providing auto focusing.

Abstract: Disclosed is a method of coupling light into a power semiconductor device having a semiconductor structure with two or more layers. The power semiconductor device has multiple cells of functionally identical units linked by multiple interconnects. In each device unit, a patterned electrode layer is disposed on the surface of the semiconductor structure. The method includes illuminating the power semiconductor device by directing a light from a light source through the patterned electrode layer to form an enhanced light coupling with the semiconductor structure. The patterned electrode layer is configured to have a micron scaled grid pattern having multiple metal grids and aperture openings that is based on a distributed resistance model having two characteristic current decay lengths.

Abstract: Systems and methods provide adaptability in a mobile ad hoc network (MANET), based on an existing protocol, such as adaptive hybrid domain routing (AHDR). The systems and methods are especially suited for fast changing topologies that may change after a reactive route discovery has been completed.

Abstract: A system and method utilizing thyristor-based Photo-Conductive Semiconductor Switches (PCSS) for short pulse switching in high power microwave and/or broadband electromagnetic pulse generation is disclosed. The PCSS consists of thyristor-type NPNP structure having multiple emitter regions enclosed by the base region and multiple emitter shorts to divert leakage currents for voltage holding. The PCSS also includes an optical aperture comprised of patterned metallic grids for light illumination and current collection. The device structure is so constructed that there is only one single bevel around the peripheral. The thyristor-based PCSS have dual polarities of voltage blocking and have better efficiency for light requirement to operate at longer pulse duration compared to diode-based and bulk-semiconductor-based PCSS.

Abstract: A system and method for scanning a wide band beam is presented. An apparatus includes a pair of prism triplets. Each prism triplet includes a first wedge prism, a second wedge prism and a third wedge prism all formed with different optical materials. In operation, a beam passing through the wide band team scanning apparatus first passes through the first, second and third wedge prisms of the first prism triplet. The beam then passes through the wedge prisms of the second prism triplet in a mirrored order (the third, then second, then first wedge prisms) than that of the first prism triplet. This apparatus with two prism triplets allows wide band light transmitted through it to emerge with its plurality of different wavelengths of light travelling in the same direction to equalize net dispersive effects each of different wavelengths.

Abstract: A field effect transistor and method for making such a transistor is provided, the field effect transistor comprising: a gate layer stack comprising a layer of a first metal is disposed proximate to at least one layer of a second metal, wherein the first metal alloys with the second metal to form a shape memory alloy. The shape metal allow may be NiTi, and at the contact plane between the layers, the alloy is formed when the transistor is heated to an elevated temperature.

Abstract: A method for the reduction of noise in an image including identifying neighboring pixel values in pixels proximate to a subject pixel; comparing the neighboring pixel values to a preset tolerance range; using neighboring pixel values within the tolerance range to calculate a pixel intensity correction value; and applying the pixel intensity value to the subject pixel.

Abstract: A system and method for linearizing underwater sensor arrays is disclosed. The sensor array comprises slightly positive or negative buoyant sensors that are positioned along a cable. A weight is positioned at a deep end of the cable or a buoyant object is positioned at a shallow end of the cable, but not both. Distributing buoyant elements throughout the length of the array generates more consistent, uniformly distributed tension, enabling the sensor array to maintain a linear shape in currents of all strengths and speeds.

Abstract: A fiber optically coupled laser rangefinder (LRF) for use in a gimbal system to input/extract a laser beam into/from a camera is disclosed. In one embodiment, the fiber optically coupled LRF includes a gimbal assembly. Further, the gimbal assembly includes a first fiber optic cable for receiving the laser beam from a remote transmitter assembly, a fiber optically coupled laser interface module to receive the laser beam and opposing mirrors to direct the laser beam to a target. In addition, the gimbal assembly includes a second fiber optic cable for transmitting a return laser beam to a remote receiver assembly. The opposing mirrors are further configured to direct the return laser beam from the target to the fiber optically coupled laser interface module. The fiber optically coupled laser interface module is further configured to transmit it to the receiver assembly via the second fiber optic cable.

Abstract: A system for providing situational awareness outside a temporary incident area network includes a prioritized connection module for connecting a mesh network at the incident area to one of a plurality of available communications channels, with the selection based not only on the availability of a communications channel but also on the associated expense, speed, reliability or bandwidth, so that high bandwidth traffic such as video and pictures can be reliably sent from the incident area to a location outside of the incident area. In one embodiment switching to a satellite phone network bypasses problems with terrestrial networks such as cell phone networks and landlines which may be down.

Abstract: A high-power and high-gain ultra-short gate HEMT device has exceptional gain and an exceptionally high breakdown voltage provided by an increased width asymmetric recess for the gate electrode, by a composite channel layer including a thin indium arsenide layer embedded in the indium gallium arsenide channel layer and by double doping through the use of an additional silicon doping spike. The improved transistor has an exceptional 14 dB gain at 110 GHz and exhibits an exceptionally high 3.5-4 V breakdown voltage, thus to provide high gain, high-power and ultra-high frequency in an ultra-short gate device.

Abstract: An amplifier for amplifying signals is presented. A cascode power amplifier includes two or more adjacent cascode amplifiers and at least one remote cascode amplifier. The adjacent cascode amplifiers are lined up adjacent each other with inputs of the adjacent cascode amplifiers connected to a common input line and outputs of the of adjacent cascode amplifiers connected to a common output line. The adjacent cascode amplifiers generally operate in parallel. The remote cascode amplifier is spaced apart from the adjacent cascode amplifiers. An input transmission line connects an input of the remote cascode amplifier to the common input line. An output transmission line connects an output of the remote cascode amplifier to the common output line. Amplified outputs of the adjacent cascode amplifiers and amplified outputs of the remote cascode amplifier are power combined and summed into a coherent amplified output signal that is output on the output transmission line.

Abstract: A waveguide having a substrate, a first germanium sidewall and a second germanium sidewall. The waveguide is formed by growing the first germanium sidewall and second germanium sidewall on the substrate.

Abstract: A system and method for selecting an optimal frequency channel to communicate on in a wireless network is disclosed. The optimal frequency is selected from a predefined set of frequencies for all nodes to communicate on based on an exposure calculation. All underlay nodes collect initial SNR information from initial detection of other nodes and adjust their transmit power for an intended receiver such that the signal is received at the lowest allowable underlay-to-overlay power ratio, thus minimizing exposure. The desired underlay-to-overlay ratio is set based on how much we are capable of cancelling the overlay signal and the SINR at which a signal can be recovered such that the data can be successfully received from the underlay node. The optimal channel selected by this algorithm is the one with the least area of undesired exposure, or least probability of interfering with the primary user. The performance increases as a function of number of nodes, or data points.

Abstract: A system and method for dynamically planning a network is presented. One method may begin by determining network parameters for connecting nodes to a network and decision variables associated with radios and/or nodes in the network. Constraints may be established to narrow possible values of the network parameters and/or the decision variables. The constraints may be based on one or more of: values associated with connecting a radio to a node in the network, values associated with connecting two nodes in the network together over a communication link, whether a node can connect to a GIG node and a flow balance in the GIG node. To find possible links in the network that are optimal, the method may minimize an equation based on the network parameters, constraints and decision variables to determine optimal communication links between pairs of nodes in the network, pairs of nodes and radios and/or pairs of radios.

Abstract: A method for optical analysis of otherwise invisible latent prints on a wide variety of surfaces and trace chemicals contained within the oils of a print. The invention provides the capability to monitor absorption/reflection infrared bands that are unique to print oils and chemicals of interest that have long or short wave infrared signatures, such as explosives, inorganic oxidizers, drugs, environmental markers, and biomarkers.