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Optical Engineering • Open Access

Analysis on wind retrieval methods for Rayleigh Doppler lidar
Author(s): Yuli Han; Xiankang Dou; Dongsong Sun; Haiyun Xia; Zhifeng Shu

Paper Abstract

A modification method is described for Rayleigh Doppler lidar wind retrieval. Compared to the double-edge theory of Korb et al. [Appl. Opt.38, 432 (1999)] and the retrieval algorithm of Chanin et al. [Geophys. Res. Lett.16, 1273 (1989)], it has a greater sensitivity. The signal-to-noise ratio of the energy monitor channel is involved in error estimation. When the splitting ratio of the two signal channels is 1.2, which usually happened during wind detection, it will improve the measurement accuracy by about 1% at 30 km altitude for a Doppler shift of 250 MHz (44  m/s ). Stabilities of retrieval methods, i.e., errors caused by the spectrum width deviation including laser pulse, Rayleigh backscatter, and filter transmission curve are first discussed. The proposed method increases the resultant precision by about 15% at 30-km altitude assuming an 8-MHz deviation in full width at half maximum of the Fabry–Perot interferometer.

Paper Details

Date Published: 2 December 2013
PDF: 9 pages
Opt. Eng. 53(6) 061607 doi: 10.1117/1.OE.53.6.061607
Published in: Optical Engineering Volume 53, Issue 6
Show Author Affiliations
Yuli Han, Univ. of Science and Technology of China (China)
Xiankang Dou, Univ. of Science and Technology of China (China)
Dongsong Sun, Univ. of Science and Technology of China (China)
Haiyun Xia, Univ. of Science and Technology of China (China)
Zhifeng Shu, Univ. of Science and Technology of China (China)


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