设计了综合斜程传输和光束扩展影响下的相位屏组来模拟光束经大气层斜程传输后产生的波前畸变, 先利用功率谱反演法和次谐波补偿法生成垂直传输路径的相位屏, 再结合斜程大气传输理论对相位屏进行斜程修正, 得到适用于模拟斜程大气湍流影响的相位屏。通过数值分析对比了斜程相位屏与垂直路径相位屏相位结构函数的差别。结合光束扩展情况计算每个高度区间对应的波前畸变空间分布, 建立了相位屏组模型, 最后得到接收光波面各位置的相位分布。

In this paper, the wavefront aberration was simulated by using the phase screen set under the influence of combined oblique propagation and beam propagation. First, the phase screen of the vertical transmission path was generated by the power spectrum inversion method and the subharmonic compensation method, and the oblique atmosphere propagation theory was used to correct the phase screen, then the phase screen suitable for the simulation of the influence of the oblique atmospheric turbulence was obtained. The difference of phase structure function between oblique phase screen and vertical path phase screen was compared by numerical analysis. The space distribution of wavefront distortion corresponding to each height interval was calculated, and the phase screen group model was established. Finally, the phase distribution of each position of the received light wave plane was obtained.