Abstract:Despite improvements in alloying and processing, the oxidation resistance of titanium and titanium aluminide alloys is one of the major factors limiting their use in advanced propulsion equipment. In addition, there are certain applications for these alloys that would benefit from improved erosion… more
Abstract:In order to overcome fabrication problems associated with large size millimeter wave/infrared (MMW/IR) beamcombiner, WaveBand Corporation proposes to design and develop a diffractive optical element (DOE) on a plastic substrate. This DOE fabricated out of material with very low MMW absorption will… more
Abstract:With the recent progress in the development of millimeter wave (MMW) receivers, especially those based on low-cost microwave/MMW integrated circuits, MMW imaging sensors have become a reality. Once fully developed, they will offer a major advantage over infrared and visible range imagers in that… more
Abstract:Lack of reliable tire warning systems in ammunition and petroleum storage areas results each year in the loss of millions of dollars in materials; it also endangers lives. Typical optical fire detection sensors do not work veil under frequently encountered adverse atmospheric conditions and in… more
Abstract:A desirable Identification Friend/Foe (IFF) system should contain no actively emitting responders, so that friendly forces can remain undetected by the enemy. A programmable, replaceable and easily mountable friend identification tag (FIT) that works with existing target search and surveillance… more
Abstract:Contemporary radar system requirements place high priority on minimizing the antenna weight, size and cost. Electronically steerable antennas hold high promise in achieving flexible scanning and beamforming. Unfortunately, so far, the amount of microwave electronics and waveguide connections that… more
Abstract:A quasi-optical phased array architecture is widely regarded as the most promising candidate for electronically scanning antennas. The key components of phased arrays are tunable phase-shifters or true time delay elements. One antenna may contain dozens to thousands of these elements which are very… more
Abstract:Lack of reliable fire warning and detection systems for urban/wildland interface, large area industrial facilities and transportation systems results each year in a loss of millions of dollars worth of property; it also endangers lives. Typical optical fire detection sensors do not work well under… more
Abstract:The goal of this effort is to develop high efficiency optical switching systems based on free space switchable gratings. The use of switched gratings as an enabling technology to arbitrarily steer RF modulated optical carriers from 1 to any of N channels or alternatively from among N input to N… more
Abstract:The goal of this effort is to develop optical interconnection technology for high performance image processing. Conventional intra-computer electrical communication, for example between multi-chip modules (MCMs), is a limiting problem in future image processors. The pin count needed between high… more
Abstract:To field characterize laser systems the laser power, beam divergence, intensity profile and spot size of the laser must be measured with a robust, vibration insensitive system. While some of these parameters can be obtained using conventional components, beam divergence is difficult to measure… more
Abstract:An acoustic projector suitable for long range signaling in the ocean is described. The design employs a novel approach, which could result in projectors of high performance, high efficiency, operation at any depth, and substantially reduced cost. Resolution of short pulses fundamentally requires… more
Abstract:DESCRIPTION (adapted from applicant's abstract): The applicant proposes to utilize the multimedia and hypertext-media capabilities of the World Wide Web to develop a complete, comprehensive set of resources for scientific and medical disciplines that are subsumed within the field of sleep. These… more
Abstract:The Welch Engineering and Hughes Space and Communications (WE/HSC) team is pleased to propose a universal Inertial Navigation System (INS) enabled by Microelectromechanical Systems (MEMS) technology. We will leverage Welch Engineering's expertise in inertial navigation system software design for… more
Abstract:Currently, the measurement of environmental parameters such as temperature, humidity, shock and vibration are used to monitor the integrity of stored missile and associated electronic support equipment. Unfortunately, it is generally a complex combination of these environmental parameters,… more
Abstract:The goal is to develop a video based simulator for the training of necessary hand-eye coordination skills for the performance of video laparoscopic surgery. The training simulator will be connected to a microcomputer which will prompt the student to perform particular tasks using surgical… more
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