Award Data

The project goal is to produce an algorithm for synthesizing auditory distance which will be accurately perceived with little or no learning required. The algorithm could be added to an existing AF 30D audio system which uses headphones in a noise-reducing helmet. The approach is to combine very accurate recently developed atmospheric modeling with head-related transfer functions (HR ...

Knowledge of the vertical profile of atmospheric parameters can be an important factor in determining the operational effectiveness of many military and civilian systems. For the past three years Aurora Flight Sciences has used support from the National Science Foundation to develop a lightweight autonomous dropwindsonde system (LADS) specifically for use with UAVS. This system, developed in coope ...

N/A

The contractor proposes a new approach to underwater imaging that directly converts a two-dimmensional acoustic pressure wave into an electronic requirements fo convential piezo-element arrays. The imager relies on the piezo-birefringent properties of a nematic liquid crystal panel that serves as both sensor and display. The capability of nematic liquid crystals has been established and publishe ...

The current market for fast switching frequency sythesizers is growing rapidly. Most synthesizers available today will not meet the stringent requirements for switching quickly, providing spectrally pure RF outputs and minimizing physical size and cost. As part of a current SBIR program, S.T. Research has developed a wideband, fast switching synthesizer, based on the use of broadband phase-locke ...

N/A

N/A

N/A

N/A

A new technique is proposed for the prediction and prevention of failures in sensors and avionics. The technique will be based on a seminal discovery in multivariate regression analysis that promises to yield dramatic increases in failure forecasting accuracy. Failure probabilities, rather than being estimated on the basis of one or two basic variables, such as the total number of flight hours, wi ...