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Applied Optics

Applied Optics


  • Vol. 19, Iss. 6 — Mar. 15, 1980
  • pp: 984–999

Methodology for target discrimination

Frank McNolty and Richard Clow  »View Author Affiliations

Applied Optics, Vol. 19, Issue 6, pp. 984-999 (1980)

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The objective is to distinguish the true target from point-target imitators and from extended-target clutter in the exoatmospheric regime. Matched filters are carefully studied from the viewpoint of SNR enhancement and pulse recognition. The matched filter structure takes into account photon noise, modulation noise, generation-recombination (GR) noise, contact noise, and various thermal noise sources. A multicolor radiant-intensity structure for target discrimination is developed by analyzing the uncertainties in such target irradiance parameters as range, temperature, projected area, and emissivity. Bias terms, variances, and other statistical descriptors are derived. Certain statistical discrimination techniques are discussed that exploit the radiant-intensity format. Helstrom’s method for processing radar signals is adapted to a four-channel pulse-recognition system for which degradation due to arrival time delays and mismatched filters is discussed.

© 1980 Optical Society of America

Original Manuscript: September 12, 1979
Published: March 15, 1980

Frank McNolty and Richard Clow, "Methodology for target discrimination," Appl. Opt. 19, 984-999 (1980)

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