激光在复杂大气环境下传输特性的仿真

Simulation of Laser Propagation Characteristic in Complex Atmospheric Environment

随着激光技术的发展,激光复杂大气环境下的传输特性一直是激光领域的研究热点。综合激光大气传输的Lam-bert-Beer定律,结合瑞利散射、米散射等经典理论,设计出一套仿真系统,可以模拟激光在复杂大气环境中的传输过程。同时,为了得到经过湍流之后的最终光场,采用基于傅里叶变换的多层相位屏模拟湍流产生的随机扰动,仿真出光斑随传输距离的演变过程。

As development of laser technology,the characteristic of laser atmospheric propagation is always hot spot in laser domain.Integrating Lambert-Beer law of laser atmospheric propagation,combining Rayleigh scattering and Mie scattering,a simulation system is designed.This simulation system can simulate the course of laser propagation in complex atmosphere.In order to obtain the final optical field through the atmosphere turbulence,the random disturbance could be simulated by a series phase screen which is based on Fourier transform.Lastly,the figure of light spot is drawn along with transmission ranges.