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Applied Optics

Applied Optics


  • Vol. 27, Iss. 16 — Aug. 15, 1988
  • pp: 3461–3463

Amplitude-compensated matched filtering

Guo-Guang Mu, Xu-Ming Wang, and Zhao-Qi Wang  »View Author Affiliations

Applied Optics, Vol. 27, Issue 16, pp. 3461-3463 (1988)

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A method of amplitude-compensated matched filtering is presented. This yields much better discrimination and a sharper autocorrelation peak compared with the classical matched spatial filter and the phase-only one. By computer simulation in the case of alphanumeric characters, it is concluded that, although the phase information is significantly more important, in the case of a matched filter, the amplitude is important too. Three-dimensional graphs of autocorrelation and cross-correlation are also provided.

© 1988 Optical Society of America

Original Manuscript: December 14, 1987
Published: August 15, 1988

Guo-Guang Mu, Xu-Ming Wang, and Zhao-Qi Wang, "Amplitude-compensated matched filtering," Appl. Opt. 27, 3461-3463 (1988)

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  1. A. V. Oppenheim, J. S. Lim, “The Importance of Phase in Signals,” Proc. IEEE 69, 529 (1981). [CrossRef]
  2. J. L. Horner, P. D. Gianino, “Phase-Only Matched Filtering,” Appl. Opt. 23, 812 (1984). [CrossRef] [PubMed]
  3. F. T. S. Yu, Optical Information Processing (Wiley-Interscience, New York, 1983), pp. 198–202.
  4. S. M. Arnold, “Electron Beam Fabrication of Computer Generated Hologram,” Opt. Eng. 24, 803 (1985). [CrossRef]

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