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1 November 1991 Quantization analysis of the binary joint transform correlator in the presence of nonlinear compression
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Abstract
The quantization effects of the joint power spectrum on the performance of the binary joint transform correlator (JTC) is investigated. Analysis of the quantization effects of the binarized joint power spectrum is presented. The signal-to-noise ratio (SNR) of the binarized joint power spectrum is determined for various levels of the Fourier plane quantization of the binary JTC. The SNR is computed for the truncated binarized joint power spectrum plane and the binary JTC performance is determined for various levels of Fourier plane truncation. It is shown that a capture effect exists in the performance of the binary JTC in the presence of the Fourier plane quantization. Nonlinear compression or truncation in the Fourier plane can improve the performance of the binary JTC at low quantization levels. Computer simulation is used to investigate the sensitivity of the binary JTC and the classic JTC in the presence of Fourier plane quantization. The results of the theoretical analysis are verified by the computer simulations.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bahram Javidi and Jianping Wang "Quantization analysis of the binary joint transform correlator in the presence of nonlinear compression", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49716
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