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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 17 — Sep. 1, 1989
  • pp: 3639–3646

Power ratio estimation in incoherent backscatter lidar: direct detection with Gaussian noise

Barry J. Rye  »View Author Affiliations


Applied Optics, Vol. 28, Issue 17, pp. 3639-3646 (1989)
http://dx.doi.org/10.1364/AO.28.003639


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Abstract

Properties of small sample estimators for the return signal power ratio or log ratio in direct detection incoherent backscatter lidar systems are analyzed. As for heterodyne receivers it is usually preferable to form an estimator from the logarithmic difference of the sample averages rather than their ratio. Calculated values of bias and noise figures are confirmed using simulated data based on constant signal models and compared with the estimates obtained from nonlinear Kalman filters. The latter generally provide the least bias at high noise levels at the cost of greater computational complexity.

© 1989 Optical Society of America

History
Original Manuscript: May 11, 1988
Published: September 1, 1989

Citation
Barry J. Rye, "Power ratio estimation in incoherent backscatter lidar: direct detection with Gaussian noise," Appl. Opt. 28, 3639-3646 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-17-3639

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