QUANTIZATION AND TRUNCATION EFFECTS ON BINARY JOINT TRANSFORM CORRELATION

被引：12

作者：

JAVIDI, B

WANG, J

机构：

[1] University of Connecticut, Department of Electrical Engineering, Storrs

来源：

OPTICS COMMUNICATIONS | 1991年 / 84卷 / 5-6期

关键词：

D O I：

10.1016/0030-4018(91)90106-N

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Analysis of the quantization effects of the binarized joint power spectrum on the performance of the binary joint transform correlator (JTC) is investigated. 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. Analytical expressions are derived for the capture effect 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 verify the results of the theoretical analysis.

引用

页码：374 / 382

页数：9

共 8 条

[1]

FIELDING KH, 1990, OPT ENG, V29, P1081, DOI 10.1117/12.55695

[2]

GOODMAN JW, 1967, INTRO FOURIER OPTICS

[3] NONLINEAR JOINT POWER SPECTRUM BASED OPTICAL CORRELATION [J].