Effectiveness of Simultaneous Independent Realizations at Low Carrier-to-Noise Ratio to Improve Heterodyne Doppler Lidar Performance. II. Experimental Results
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
[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
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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