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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 20, Iss. 19 — Oct. 1, 1981
  • pp: 3292–3313

Imaging and target detection with a heterodyne-reception optical radar

J. H. Shapiro, B. A. Capron, and R. C. Harney  »View Author Affiliations


Applied Optics, Vol. 20, Issue 19, pp. 3292-3313 (1981)
http://dx.doi.org/10.1364/AO.20.003292


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Abstract

A mathematical system model for a compact heterodyne-reception infrared radar is developed. This model incorporates the statistical effects of propagation through atmospheric turbulence, target speckle and glint, and heterodyne-reception shot noise. It is used to find the image signal-to-noise ratio of a matched-filter envelope–detector receiver and the target detection probability of the optimum likelihood ratio processor. For realistic parameter values it is shown that turbulence-induced beam spreading and coherence loss may be neglected. Target speckle and atmospheric scintillation, however, present serious limitations on single-frame imaging and target-detection performance. Experimental turbulence strength measurements are reviewed, and selected results are used in sample performance calculations for a realistic infrared radar.

© 1981 Optical Society of America

History
Original Manuscript: February 9, 1981
Published: October 1, 1981

Citation
J. H. Shapiro, B. A. Capron, and R. C. Harney, "Imaging and target detection with a heterodyne-reception optical radar," Appl. Opt. 20, 3292-3313 (1981)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-20-19-3292

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