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随着激光技术的发展,激光大气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理论模型,运用科学的软件开发方法设计出了一套仿真系统,用来模拟激光在复杂大气环境中的辐射特性和激光的传输过程。该系统理论模型以Lambert-Beer定律为基础,结合了瑞利散射和米散射等经典理论,当在烟幕环境中模拟激光传输时,采用了多次散射模型。仿真中对大气环境采用逐段细化,每段根据数据库参数变化选取合适的计算模型,以提高仿真精度。绘制出了光斑和等位面随传输距离的演化图形,以演示激光大气的传输过程。
With the development of laser technology, laser atmospheric transmission has always been a hot topic in laser field. Based on the theoretical model of laser atmospheric transmission, a set of simulation system is designed by using scientific software development method to simulate the radiation characteristics of laser in complex atmosphere and laser transmission. Based on the Lambert-Beer law, the system theoretical model combines classical theories such as Rayleigh scattering and scattering to employ multiple scattering models when simulating laser transmission in a smoke screen environment. In the simulation, the atmospheric environment is refined in a paragraph-by-paragraph manner, and each section selects the appropriate calculation model according to the change of the database parameters to improve the simulation accuracy. Draw the evolution of the spot and equipotential surface with the transmission distance to demonstrate the laser atmospheric transmission process.