湍流大气中激光束漂移的计算

The Calculation of Laser Beam Displacements in Turbulent Atmosphere

本文把光强分布的质心坐标定义为光束的中心,以Markov随机过程近似为基础导出了计算湍流大气中激光束的漂移方差的Markov过程近似方程式。并利用光强二阶矩的近似表达式求解上述方程,从而得出计算湍流大气中激光束漂移方差的具体表达式。并对结果进行了讨论。

In this paper, the light beam center is defined as the coordinate of center of gravity of intensity distribution. Based on the Markovian process approximation, the Markovian process approximation equation for calculating laser beam displacement variance is derived. This equation is solved by using the second moment of light intensity. So the asymptotic representation for calculating laser beam displacement is obtained.