Optimum target detection using a spatial-domain bipolar composite filter with a joint transform correlator

Synthesis of a spatial-domain bipolar composite filter (SBCF) using a simulated annealing algorithm is presented. Since an SBCF is a spatial-domain filter, it is very suitable for implementation in a joint transform correlator. To alleviate the stringent control requirement of a phase-modulated spat...

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Bibliographic Details
Published in:Optical Engineering 1995-11, Vol.34 (11), p.3200-3207
Main Authors: Yu, Francis T. S, Lu, Mingzhe, Lu, Guowen, Yin, Shizhuo, Hudson, Tracy D, McMillen, Deanna K
Format: Article
Language:English
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Summary:Synthesis of a spatial-domain bipolar composite filter (SBCF) using a simulated annealing algorithm is presented. Since an SBCF is a spatial-domain filter, it is very suitable for implementation in a joint transform correlator. To alleviate the stringent control requirement of a phase-modulated spatial light modulator, a position-encoding technique is used to generate the SBCF as well as the input objects. Experimental demonstrations are also provided, in which it is shown that the SBCF has a higher discrimination capability of extracting the target objects against the antitarget objects. (Author)
ISSN:0091-3286
1560-2303
DOI:10.1117/12.213582