Reference phase-encoded joint transform correlator for eliminating undesired cross-correlations involving multiple targets

Abdallah K. Cherri; Mohammad S. Alam

doi:10.1117/12.408557

29 November 2000 Reference phase-encoded joint transform correlator for eliminating undesired cross-correlations involving multiple targets

Abdallah K. Cherri, Mohammad S. Alam

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Proceedings Volume 4114, Photonic Devices and Algorithms for Computing II; (2000) https://doi.org/10.1117/12.408557
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A novel technique that employs phase encoding for the reference image and nonlinear Fourier plane apodization for optimizing the detection performance for multiple target detection is proposed. The proposed reference phase-encoded JTC overcomes false target detection by eliminating the false correlation peaks while alleviating the effects of noise and other artifacts in just one-step thus ensuring higher processing speed. Also, this technique yields only one peak per target instead of a pair of peaks produced by alternate JTCs. An all-optical implementation for the reference phase-encoded JTC technique is proposed and computer simulation results are presented.

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Abdallah K. Cherri and Mohammad S. Alam "Reference phase-encoded joint transform correlator for eliminating undesired cross-correlations involving multiple targets", Proc. SPIE 4114, Photonic Devices and Algorithms for Computing II, (29 November 2000); https://doi.org/10.1117/12.408557

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KEYWORDS

Target detection

Fourier transforms

Binary data

Joint transforms

Computer programming

Optical correlators

Apodization

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