27 December 1990 Optical binary phase-only correlation system for rapid target recognition, discrimination, and tracking
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Abstract
This paper describes an optical correlator system that uses binary-phase-only filters (BPOFs) for target identification, tracking and discrimination. The optical system is a modification of previous correlator designs. The system incorporates a telephoto lens pair and simplifies the output optics such that the total optical-processor system length is reduced to fractions of a focal length. A Vernier scale adjustment of the optical Fourier transform is also made possible. Extensive software was developed to generate and manipulate target and filter files including the generation of BPOFs and the sequencing of files to drive the spatial light modulators. Examples are shown of autocorrelation and crosscorrelation of the target and filters.
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Marvin D. Drake, Glen B. Franks, Ronald O. Siewert, "Optical binary phase-only correlation system for rapid target recognition, discrimination, and tracking", Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); doi: 10.1117/12.23452; https://doi.org/10.1117/12.23452
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