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A programmable fiber optic delay line system for microwave signal storage will be designed and analyzed, and optical switch technology for use in the system will be perfected. The delay line will consist of fifteen 2x2 optical switches connected by single mode fiber sections of unequal length. A key component in the system is the all-fiber piezoelectrically actuated switch developed at Texas A&M ...

In spite of the rapid advances in the speed and density of electronic components, a compact hardware package providing a complete real-time solution to vision problems remains beyond the capabilities of currently available technology. This project proposes to develop a smart CCD camera using a temporal cellular neural network architecture that can perform a variety of iconic operations in real-t ...

Todays thermoelectric cooling materials exhibit a peak performance, termed ZT, of about 1.0. Recent development in the theory of quantum-well superlattices suggest that ZTs of up to 9 are possible. Work is ongoing to synthesize superlattices using techniques such as molecular beam epitaxy, sputtering and chemical vapor deposition but to date high quality thermoelectric superlattices have not bee ...

Bismuth rich BiSb alloys exhibit the best n-type thermoelectric properties known. However, these properties are realized only in single crystals which are difficult to machine because they tend to cleave. Also, the anisotropic nature of BiSb requires that that the device current be passed across the cleavage planes. Therefore, single crystal BiSb has not been utilized in devices because the ris ...

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The Army has developed a Block I Single Channel Antijam Man portable (SCAMP) terminal power supply for field deployment. The Block I SCAMP, a 30 lb terminal, runs at least 12 hours on an Army Standard 24 VDC battery. The Block II SCAMP terminal will be a 15 lb terminal that will run at least 24 hours off a battery. The Block II SCAMP upgrade requires a smaller, lighter, high efficiency DC to D ...

The program objective is to adapt radar imaging technology to meet test center measurement requirements at high altitudes and long ranges where current optics and radars are lacking. METRATEK is in a unique position to accomplish this effort because we have a proven reputation for establishing the state of the art in advanced radar imagine technology and we have already developed and proven the t ...

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A combination of newly available GPS2 microchip technology and microminiature optically sensed gyroscopes will allow us to configure a small (2"x4"x4", 0.018 cu ft), low cost, self-contained, battery-powered (2.5 Watts), projectile guidance system. The Phase I prototype will continuously output all 6 components of projectile orientation (latitude, longitude, geometric altitude, roll, pitch, and y ...