Award Data

The objective of this effort is to demonstrate a prototype advanced diagnostic system for the T800 turboshaft engine using a hybrid polynomial network and production-rule expert system. The resulting system will demonstrate the feasibility of developing a revolutionary diagnostic capability which can model the engine at a system level, detect failures before they become signficant isolate faults, ...

Adroit Systems, Inc. proposes to develop a hand-held , autonomous Satellite Location and Point System (SLAPS). The system will store communication satellites' ephemeris data to calculate and display visibility windows. SLAPS also will use this data to calculate the azimuth and elevation angle to the communication satellite of interest. The system will use interferometry of Global Positioning Syste ...

See Charles River Analytic comment. It applies here also.

The use of high-temperature laser densification/annealing techniques for enhancing materials surface characteristics has opened new opportunities in material/laser-process diagnostic instrumentation. Important issues in fabrication of reproducible refractory ceramic coating film lies in understanding of the interrelationship between processing parameters and surface properties. To respond to this ...

The new aerospace materials are finding applications in the design of military armor vehicles. However, the effect on ride quality, fire control, and internal structural loads due to the increased flexibility of these new vehicles must be ascertained by dynamic analysis. The size of models required to simulate these flexible body effect can be prohibitive from both cost and time perspective. There ...

This receiver sets forth a plan to utilize commercial GPS receivers for real time ionospheric prediction at a remote location. The project will demonstrate the feasibility of using TEC measurements and evaluate the accuracy and applicability of these measurements for improvements in HF propagation. For this we assess the predictability of the slab thickness parameter T towards solar and geophysica ...

This effort would develop the laboratory set-up of the solderability tester into a real time statistical process control tool in the manufacture of printed wiring boards. By correlation of SERA test data to copper contamination levels in the solder plating bath; and the application of statistical process control techniques, real time feedback to the plating process would be established.

Advanced turbine engines and flight vehicles will depend upon new, high-temperature metal matrix composites (MMC's) to meet performance goals. Engineering characterization of such materials is difficult and costly, which accounts for the meager property database available to designers. Thin-walled tubes would be especially useful for developing constitutive relations and failure criteria under mul ...

Aerosol sprays of paint, epoxy, and other substances can be dispensed by mines and other munitions to disable hostile sensors, vehicles, and weapon systesm. For example, a paint-filled aerosol mine could be designed to detect an approaching vehicle, pop into the air, and eject and aerosol mist of opaque, brightly colored, slovent resistive, electrically conductive paint at the vehicle. The resulti ...

It is proposed to develop a mathematical model for the bistatic signature of chaff, as well as weather (rain and fog). The model will include the full scattering matrix and temporal and spatial amplitude and phase fluctuation statistics. The model will be parametric in such factors as the electrical length of the chaff dipoles, wind turbulence, and radar resolution volumes. DSA proposes to build u ...