Award Data

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RIA scientists have developed a numerical scheme for the detection and classification of complicated signals in highly noisy environments (negative SNR). This method performs DIC using nonlinear signal information based on techniques developed from the theory of Chaotic dynamics. Preliminary tests on real-world data sets, recently supplied by Navy personnel, indicate that this method will likely ...

We shall deliver an information exploitation demonstration prototype simulatirsg actual rlata exploitation. Within this prototype we shall deliver five different types of capabilities. The first three capabilities are data mining tools. These tools shall demonstrate the capability of identifying electronic patterns or f ingerprints in data, relationships between data, and visualizations of such ...

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 ...

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Many businesses and governmental agencies seek to deter alcohol impairment on the job and, in this connection, feel a need to detect impaired performance due to alcohol or other toxic substances directly, rather than by inference from blood and urine assays. The proposed effort addresses this need. Industry requirements for a performance test of alcohol- induced impairment are that the test be j ...

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 ...

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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 ...