Award Data

Wind noise in outdoor measuemetn micropnones can mask an acoustic signal. Windscreens provide some wind noise reduction; however, those typically used for outdoor applications provide noise reductions of approximately 10-15 dB. Planning Systems Incorporated (PSI) proposes to design and test a Multiple Aperture Sensor System (MASS) consisting of a microphone, a processor, and data acquisitio and ...

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The opportunity addressed in this proposal is a fast-acting cryogenic injection valve for pulse detonation rocket engines (PDREs), which are predicted to significantly out-perform current state-of-the-art chemical deflagrative rocket propulsion systems. The developed valve would allow high mass flow rates to be achieved with fast response times, all at minimum cost, weight, power, and volume. Th ...

Active noise reduction (ANR) headsets have found a market niche in the hearing protection industry, thereby validating the technology of active noise control for personal applications. This Phase I project will seek to extend the application of personal ANR systems to include specialized headphones which can successfully evaluate hearing acuity in typical clinical environments. To ensure a succe ...

We propose to design and fabricate an optical filter that can be tuned continuously from 1.5 um to 2.5 um with a linewidth less than 1 nm. Our system consists of 2 separate filters that can each be electronically tuned. One provides a large free spectral range, and the other provides a narrow linewidth.

The Reconfigurable Operator Station Simulator (ROSS) project will provide designers of operator stations for Uninhabited Aerial Vehicles (UAVs) with a rapid prototyping system. In addition, the architecture on which ROSS is based provides a platform on which to build tools that increase the ability of operators to control UAVs and to impart a far greater understanding of the situation to them. T ...

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Controlling millimeter radio frequency waves with optical signals is a requirement for military communications and radar systems. The advances in the past decade have led to photonic sensors and switches that utilize light beams interacting with RF devices. New capabilities extending to higher frequencies and working over multiple frequency bands are possible using a combination of nonlinear op ...

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The human brain processes information from several sensors of the body and extracts meaningful information about the environment. Likewise, the ability to fuse multilevel, multifaceted processes dealing with the association, correlation, and combination of data from single or multiple sources is desired to attain state and identity estimates in a timely manner. However, current data fusion techniq ...