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Proceedings Paper

An Optical Wideband Ambiguity Function Generator
Author(s): Bruce A. Horwitz
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Paper Abstract

A highly specialized optical processing system for generating ambiguity surfaces is described. The surfaces are generated by a series of cross-correlations between two raster-recorded, large time-bandwidth signals, one of which has been doppler compensated. High data throughput is achieved by performing nearly all necessary operations in parallel, optically. After initial detection, the signals are stored in raster format on an optical data buffer. Doppler compensation is effected by a newly designed, incoherent, Optical Doppler Transformation system which provides a controlled, variable anamorphic compression or expansion of the entire signal raster, and cross correlations are performed by a coherent optical correlator which has real time, optically addressed, spatial light modulators in the input and filter planes. This paper discusses the operation of the components of this ambiguity function generator, with particular emphasis on the new Optical Doppler Transformation system, and presents throughput performance predictions.

Paper Details

Date Published: 8 December 1977
PDF: 7 pages
Proc. SPIE 0118, Optical Signal and Image Processing, (8 December 1977); doi: 10.1117/12.955685
Show Author Affiliations
Bruce A. Horwitz, Itek Corporation (United States)

Published in SPIE Proceedings Vol. 0118:
Optical Signal and Image Processing
David P. Casasent, Editor(s)

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