Award Data

Few strategic decision-making tools are effective today in availability analysis. These tools adapt highly deterministic approaches, ignoring uncertainty and subjectiveness naturally existing when evaluating potential propulsion system technologies. Such approaches preclude the use of a rich source of knowledge available from subject matter experts. Introduced is the concept of "fuzzy" availabilit ...

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The extension of classical frequency domain and wavelet transformation adaptive subband decompositions result in arbitrary time frequency til. The use of a time-varying tree-structured filterbank is proposed to provide a signal dependent transform which is capable of tracking non-stationarities via local reconfigurations. Under stationary assemptions, the filterbank converges to a unitary operat ...

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Wang-Tripp Corporation (WTC) prposes a six-month Phse I exploratiory research and development effort to design a UHF Satellite Communications (SATCOM) antenna for beyond-line-of-sight communications, and participation in Navy communications nets. Curretnly availabe UHF SATCOM antennas are unsuitable for the Navy's high-performance aircraft because of form factor, weight, intrusion into the aircaft ...

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The U.S. Navy has already achieved dramatic cost savings using teleconferencing technology in its Chief Electronic Schoolhouse Network (CESN) project. Even greater cost savings could be achieved if teleconferencing technology were portable and reliable enough to be used from any geographic location (ship or shore), in the world. At the same time, experiments like the Defense Information Services ...

Wang-Tripp Corporation (WTC) proposes a six-month Phase I exploratory research effort to determine the feasiblity of a low-profile array element for the Navy's active, electronically-steered array (AESA) antenna. The best current broadband elements (flared notches) require about two inches of depth including integrated circulators, but a depth of less than one inch is needed. The elements msut c ...

A roadmap for affordability will be developed in Phase I based on Robust Design Simulaton(RDS) which will be applied in Phase II to address affordability design tradeoffs for propulsion system technologies in V/STOL aircraft. The V-22 tilt rotor aircraft with the T-406 engine will be used as the baseline V/STOL aircraft for affordability measurement verification and validation of the RDS. The pr ...

Scientific Research Corporation (SRC) proposes to develop a digital implementation of a mechanical (analog-electronic) compression filter. The replacement filter will consist of an A/D converter, digital filter circuitry, a D/A converter, and the gain and filtering circuitry required to optimize the system. An analysis of the current system will be performed to determine the feasibility of such ...