基于功率谱反演法的大气湍流相位屏数值模拟  

Numerical Simulation of Atmospheric Turbulence Phase Screen Based on Power Spectrum Inversion Method

作　　者：杨海波[1] 许宏[1] YANG Hai-bo;XU-hong(Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China)

机构地区：[1]光电信息控制和安全技术重点实验室

出　　处：《光电技术应用》2019年第4期73-76,共4页Electro-Optic Technology Application

摘　　要：研究激光大气传输效应一直是激光应用领域的重点,数值模拟是研究大气湍流效应常用的手段。利用功率谱反演法对满足Kolmogorov统计规律的大气湍流相位屏进行了数值模拟研究。结果表明,受其固有局限性,基于功率谱反演法的相位屏,需要通过次谐波对其低频部分进行补偿,才能更好模拟大气湍流效应。Research on laser atmospheric transmission effect is always important in laser application. Numeri. cal simulation is a common method to research on atmospheric turbulence effect. Based on power spectrum inversion method, numerical simulation of wave front phase screen by Kolmogonov atmospheric turbulence is implemented. Research results show that on the basis of the phase screen generated by power spectrum inversion method, the atmo. spheric turbulence effect can be better simulated by the low frequency part being compensated by sub-harmonic.

关 键 词：大气湍流 相位屏 功率谱 数值模拟 

分 类 号：TN241[电子电信—物理电子学]