Numerical simulation of measuring the backscattering of a focused laser beam in the turbulent atmosphere

被引:0
作者
Liu, MN [1 ]
Wu, Y [1 ]
机构
[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Opt Atmospher Lab, Hefei, Anhui, Peoples R China
来源
Optical Technologies for Atmospheric, Ocean, and Environmental Studies, Pts 1 and 2 | 2005年 / 5832卷
关键词
atmospheric turbulence; arrival angle fluctuation; focused laser beam; RANDOM-MEDIA; PROPAGATION;
D O I
10.1117/12.619511
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A method of measuring the atmospheric turbulence based on the arrival angle fluctuation of a focused laser beam backscattering is numerically simulated. By the paraxial scalar wave equation and a fractal phase-screen algorithm we propose the simulation model for the focused laser beam propagating along a fold path. With a constant Fried length, we separately analyze the arrival angle fluctuation variance's statistical characteristics of the focused laser beam backscattering and the fixed point-source as reference beacon, and obtain the relatively high correlation between them. Moreover, we change the propagation distance; analyze the degree of similarity between them. The simulated results are verified by experimental results.
引用
收藏
页码:31 / 38
页数:8
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