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Applied Optics

Applied Optics


  • Vol. 32, Iss. 23 — Aug. 10, 1993
  • pp: 4357–4364

Intensity compensation fiber for joint transform correlation peak enhancement

Feng Cheng, Pedro Andres, Francis T. S. Yu, and Don Gregory  »View Author Affiliations

Applied Optics, Vol. 32, Issue 23, pp. 4357-4364 (1993)

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A spatial filtering technique is proposed to sharpen the correlation peak for a joint transform correlator (JTC) by using the inverse reference power spectrum. Ways of handling the pole problems are discussed under various noise conditions. The minimum mean-square-error method is used to locate the optimum bias value and to estimate threshold level as applied to eradicate the poles. Applications to multitarget recognition and spectral fringe binarization are also studied. Computer-simulated results show that the compensated JTC performs better than the conventional JTC.

© 1993 Optical Society of America

Original Manuscript: March 9, 1992
Published: August 10, 1993

Feng Cheng, Pedro Andres, Francis T. S. Yu, and Don Gregory, "Intensity compensation fiber for joint transform correlation peak enhancement," Appl. Opt. 32, 4357-4364 (1993)

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