自适应光学对大气扰动波前的补偿效果研究 I.水平大气传输时的结果分析

讨论了光波在水平大气湍流中传输时的情况。计算结果表明自适应光学系统的补偿效果与光波传播路径上的横向风有很大的关系。大气湍流的强度越大，自适应光学系统的截止频率越高，横向风的影响也越大。计算结果还表明在相同的ｒ０或者相同的大气湍流强度下，球面波所受大气扰动的自适应光学补偿效果受横向风的影响要比平面波的厉害。本文还将理论分析的结果和数值模拟的结果进行了比较，表明数值模拟结果受横向风的影响比理论分析结果受横向风的影响大。最后，文中分析了以上现象并对此作出了合理的解释

Compensation Effect of an Adaptive Optics System for Atmosphere Induced Wavefront Perturbation II. Analysis of the Results for Light Propagation in Horizontal Atmosphere

The condition of light propagating in the horizontal atmosphere has been considered. It is shown that the compensation effect of an adaptive optics system is strongly related with transverse wind along the light propagation path. When intensity of the atmospheric turbulence becomes stronger, or the cut off spatial frequency of the adaptive optics system becomes higher, the influence of transverse wind becomes stronger. It is also shown that the influence of transverse wind on the compensation effect for the atmospheric turbulence induced wavefront perturbaton on spherical wave is stronger than that on plane wave.