中国物理B ›› 2013, Vol. 22 ›› Issue (2): 24211-024211.doi: 10.1088/1674-1056/22/2/024211
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
杜军, 任德明, 赵卫疆, 曲彦臣, 陈振雷, 耿利杰
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 )
摘要: 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.
中图分类号: (Remote sensing; LIDAR and adaptive systems)