Award Data

A new thermal protection concept is described and an investigation to determine its feasibility and quantify its performance is proposed. The concept involves placing an array of small cavities in the nose region of a typical hypersonic interceptor (projectile, missile, or submunition). The cavities act as multiple Helmholtz resonators, and can be made to operate in a very predictable manner to ...

Most E-O sensors operate in the visible and the near infrared. These sensors such as silicon and CCD arrays are very well developed resulting in high resolution and low cost. However, these sensors are limited to a spectral response of 900 to 1000nm. The mixing laser (MIXL) uses a non-linear material doped with lasing ions to create a self frequency summing or difference frequency mix ...

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ION BEAMS WILL BE APPLIED IN SEVERAL ASPECTS OF PROCESSING ZNSE OPTICAL COMPONENTS. FIRST THE MATERIAL WILL BE MILLED, AND THEN IT WILL BE COATED USING ION ASSISTED DEPOSITION TECHNIQUES. REDUCED SCATTER FROM THE SUBSTRATE AND IMPROVE OPTICAL AND MECHANICAL PROPERTIES OF THE FILM ARE ANTICIPATED.

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AN ANALYTIC MODEL OF A WIDE FIELD, PHASED ARRAY IMAGING SYSTEM WILL BE DEVELOPED. THE MODEL IS BASED ON A MEASUREMENT SYSTEM CAPABLE OF ERROR MEASUREMENT DIRECTLY WITH RESPECT TO THE FINAL IMAGE PLANE. THE BEAMS FROM INDIVIDUAL SUBAPERTURES WILL BE COMPACTED AND CONFORMALLY MAPPED TO A DEMAGNIFIED PUPIL. WE WILL DEVELOP NONREDUNDANT, CODED APERTURE MASKS TO BE INSERTED AT THIS COMPACT PUPIL WHICH ...

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BECAUSE OF A LACK OF ADEQUATE FLIGHT OR GROUND TEST DATA FOR HYPERSONIC REENTRY CONDITIONS, THE DESIGN AND ANALYSIS OF EXISTING AND FUTURE BRVS, MARVS AND DECOYS WILL INCREASINGLY BENEFIT FROM THE DEVELOPMENT OF ACCURATE AND RELIABLE NUMERICAL TOOLS FOR PREDICTING SUCH HYPERSONIC FLOWFIELDS. TO EFFECTIVELY SUPPORT THE DESIGN AND ANALYSIS STUDIES, THE NUMERICAL SCHEMES REQUIRE A UNIQUE COMBINATION ...

CURRENT TECHNIQUE OF OPTICAL FLAME DETECTION RELY ON THE USE OF NARROW BANDWIDTH SENSORS WHICH HAVE BEEN DEMONSTRATED TO BE PRONE TO FALSE ALARMS. TO ADDRESS THIS NEED, AMERICAN RESEARCH CORPORATION OF VIRGINIA (ARCOVA) PROPOSES TO DEVELOP AN INTELLIGENT MACHINE VISION INTERFACE FOR THE DETECTION AND CLASSIFICATION OF SPECTRAL FLAME SIGNATURES. THE APPROACH BEING PROPOSED WOULD USE MACHINE VISION ...

THE OBJECTIVE OF THIS PROPOSAL IS TO DEVELOP A MORE EFFICIENT, HIGH POWER MILLIMETER WAVE SOURCE BY MODIFYING THE ORIGINAL ORBITRON MASER. THE ORIGINAL ORBITRON IS DRIVEN BY A SINGLE POWER SUPPLY (I.E.A SMALL CAPACITOR) WHICH GENERATES AN AXISYMMETRIC LOGARITHMIC POTENTIAL-WELL AS RADIALLY DIRECTING (AT FIRST) ELECTRON BEAMS IN THE TUBE OF COAXIAL GEOMETRY. HOWEVER, THE POSITIVE POTENTIAL (V(O)) I ...