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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 36 — Dec. 20, 2002
  • pp: 7510–7515

Effectiveness of simultaneous independent realizations at low carrier-to-noise ratio to improve heterodyne Doppler lidar performance. II. Experimental results

Gaspard Guérit, Philippe Drobinski, Béatrice Augère, and Pierre H. Flamant  »View Author Affiliations


Applied Optics, Vol. 41, Issue 36, pp. 7510-7515 (2002)
http://dx.doi.org/10.1364/AO.41.007510


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Abstract

A 1.55-µm continuous-wave heterodyne Doppler lidar (HDL) with three receiver–detector units is used to validate experimentally the findings presented in the Guérit et al. companion paper [Appl. Opt. 41, 2232 (2002)] on the effectiveness of independent realizations to improve HDL performance (velocity or power estimates or both) at a low carrier-to-noise ratio (CNR). In fact, noise has a detrimental effect on the accumulation techniques, so in the Guérit et al. companion paper, the chances of getting “heavy” speckles in HDL signals from many receiver–detector units on a single- or several-shot basis are investigated theoretically and numerically with the Zrnic HDL model. The experimental results enable us to conclude there is a very good agreement (better than 95%) between the performance computed from actual HDL data and from the theoretical predictions.

© 2002 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(030.1640) Coherence and statistical optics : Coherence
(040.2840) Detectors : Heterodyne
(040.3780) Detectors : Low light level

History
Original Manuscript: February 25, 2002
Revised Manuscript: July 24, 2002
Published: December 20, 2002

Citation
Gaspard Guérit, Philippe Drobinski, Béatrice Augère, and Pierre H. Flamant, "Effectiveness of simultaneous independent realizations at low carrier-to-noise ratio to improve heterodyne Doppler lidar performance. II. Experimental results," Appl. Opt. 41, 7510-7515 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-36-7510

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