Nonlinear compansive noise reduction in joint transform correlators

J. Khoury; George Asimellis; Peter D. Gianino

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Nonlinear compansive noise reduction in joint transform correlators

机译：Nonlinear compansive noise reduction in joint transform correlators

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Compansive diffraction nonlinearities reduce the noise and improve the performance of joint transform correlators. The compression and expansion of the photorefractive two-beam coupling parallel optical device is similar to that of the limiting square-law serial electronic re-ceiver. Computer simulations of this device indicate superior perfor-mance over a wide range of noise levels. # 1998 Society of Photo-Optical Instrumentation Engineers. S0091-3286(98)01901-1 Subject terms: recognition techniques; correlators; compression; expansion;pho- torefractive; joint transform correlators. Paper ART-149 received June 8, 1997 revised manuscript received Aug. 25, 1997; accepted for publication Sep. 2, 1997.

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《Optical Engineering》 |1998年第3期|66-74|共9页
作者
J. Khoury; George Asimellis; Peter D. Gianino;
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Rome Laboratory Hanscom Air Force Base, Massachusetts 01731 and Lartec, Inc. Concord,/ New Hampshire 03301;

Tufts University Medford, /Massachusetts 02155;

Rome Laboratory Hanscom Air Force Base,/Massachusetts 01731 E-mail: gianino @ maxwell.rl.plh.af.mil;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
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正文语种英语
中图分类光学仪器;
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Nonlinear compansive noise reduction in joint transform correlators

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