Operation of an adaptive processor using a photorefractive parallel integrator

Frederick Vachss; John H. Hong; Christopher W. Keefer; John Edward Malowicki

doi:10.1117/12.138434

2 December 1992 Operation of an adaptive processor using a photorefractive parallel integrator

Frederick Vachss, John H. Hong, Christopher W. Keefer, John Edward Malowicki

Proceedings Volume 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III; (1992) https://doi.org/10.1117/12.138434
Event: Aerospace Sensing, 1992, Orlando, FL, United States

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.

Citation Download Citation

Frederick Vachss, John H. Hong, Christopher W. Keefer, and John Edward Malowicki "Operation of an adaptive processor using a photorefractive parallel integrator", Proc. SPIE 1703, Optical Technology for Microwave Applications VI and Optoelectronic Signal Processing for Phased-Array Antennas III, (2 December 1992); https://doi.org/10.1117/12.138434

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