中国激光, 2013, 40 (8): 0813001, 网络出版: 2013-07-16   

任意厚度随机相位屏激光大气传输特性仿真模型

Simulation Model of Laser Atmospheric Transmission Characteristics Using Arbitrary Thickness Random Phase Screen
王锐 1,2,*王挺峰 1,2孙涛 1,2
作者单位
1 中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
2 激光与物质相互作用国家重点实验室, 吉林 长春 130033
摘要
为了分析高斯光束的大气传输特性,根据随机相位屏数值仿真方法,利用Rytov弱起伏理论,在薄相位屏模型的基础上,详细分析了各个统计量。建立了基于Kolmogorov谱条件下的高斯光束经任意厚度相位屏传输统计量的数学模型,并且给出了易于处理的解析表达式。同时对闪烁指数、Rytov方差等统计量进行了分析,结果表明任意厚度相位屏模型比薄相位屏适用范围更广,且对于统计量的描述更为准确。
Abstract
In order to analysis the Gaussian beam transmission characteristics, according to the numerical simulation method of random phase screen, the Rytov weak turbulence theory is used to analyze each statistical quantity. The numerical model of Gaussian beam propagation through an arbitrary thickness phase screen is established, based on the Kolmogorov spectrum, and the analytic expression which is easy to be treated is also given. Meantime, the scintillation index and Rytov variance are analyzed. The results indicate that the application range of arbitrary thickness phase screen model is wider than the thin phase screen, and the statistic describing is more accurate.
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王锐, 王挺峰, 孙涛. 任意厚度随机相位屏激光大气传输特性仿真模型[J]. 中国激光, 2013, 40(8): 0813001. Wang Rui, Wang Tingfeng, Sun Tao. Simulation Model of Laser Atmospheric Transmission Characteristics Using Arbitrary Thickness Random Phase Screen[J]. Chinese Journal of Lasers, 2013, 40(8): 0813001.

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