Theoretical description of improving measurement accuracy for incoherence Mie Doppler wind lidar

doi:10.1088/1674-1056/22/2/024211

Abstract For the nonlinearity of Fabry-Perot interferometer (FPI) transmission spectrum, the measurement uncertainty of incoherent Mie Doppler wind lidar based on it increases evidently with the increase of backscattering signal Doppler shift. A method of repeating the use of the approximate linear part of FPI transmission spectra for reducing the high uncertainty of big Doppler shift is proposed. One of the ways of realizing this method is discussed in detail, in which the characteristics of FPI transmission spectrum changing with thickness and incident angle are utilized simultaneously. Under different atmosphere conditions, it has been proved theoretically that the range of measurement uncertainty drops to one-sixth while its minimum has no seriously change. This method can be used not only to guide the new system design, but also as a new working way for the fabricated system.

Keywords: incoherent Doppler wind lidar measurement accuracy

Received: 05 June 2012
Revised: 29 June 2012
Accepted manuscript online:

PACS:	42.68.Wt	(Remote sensing; LIDAR and adaptive systems)
	42.79.Qx	(Range finders, remote sensing devices; laser Doppler velocimeters, SAR, And LIDAR)

Fund: Project supported by the International Cooperative Project between China and Russia, Research on the Ocean/Atmosphere Lidar (Grant No. 2008DFR10170).

Corresponding Authors: Ren De-Ming
E-mail: deming@hit.edu.cn

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Du Jun (杜军), Ren De-Ming (任德明), Zhao Wei-Jiang (赵卫疆), Qu Yan-Chen (曲彦臣), Chen Zhen-Lei (陈振雷), Geng Li-Jie (耿利杰 ) Theoretical description of improving measurement accuracy for incoherence Mie Doppler wind lidar 2013 Chin. Phys. B 22 024211

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Theoretical description of improving measurement accuracy for incoherence Mie Doppler wind lidar

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