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Proceedings Paper

Operation of an adaptive processor using a photorefractive parallel integrator
Author(s): Frederick Vachss; John H. Hong; Christopher W. Keefer; John Edward Malowicki
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Paper Abstract

A parallel optical technique for use in the adaptive processing of radar signals is described. We have demonstrated such a technique in an acousto-optic adaptive signal processing system designed to null the jamming of radar signals. This system features a time integrating correlator using a new type of photorefractive spatial light modulator exhibiting high levels of contrast, resolution, uniformity and sensitivity. Using this system we have demonstrated nulling of both narrow and wide band RF signals. The operation of the photorefractive integrating device, its performance and that of the overall system are discussed.

Paper Details

Date Published: 2 December 1992
PDF: 6 pages
Proc. SPIE 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III, (2 December 1992); doi: 10.1117/12.138434
Show Author Affiliations
Frederick Vachss, Rockwell International Science Ctr. (United States)
John H. Hong, Rockwell International Science Ctr. (United States)
Christopher W. Keefer, Rome Lab. (United States)
John Edward Malowicki, Rome Lab. (United States)


Published in SPIE Proceedings Vol. 1703:
Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III
Shi-Kay Yao; Brian M. Hendrickson, Editor(s)

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