论文部分内容阅读
大气湍流呈现出复杂的随机特性,导致大气湍流光波传输理论的实验测量验证存在困难。数值仿真具有参数可控性,已成为大气湍流光波传输的另一种重要研究手段。针对国内外文献,综述了大气湍流随机相位屏模型、随机相位屏数值生成方法以及光传输数值仿真的空间采样约束。综合分析已有研究成果,指出各向异性湍流随机相位屏生成和光脉冲传输数值仿真还需作进一步深入研究;另外,利用并行计算设备来提高大气湍流光传输数值仿真的速度也是今后的一个研究重点。
Atmospheric turbulence shows complicated random characteristics, which makes it difficult to verify the experimental measurement of atmospheric turbulent lightwave transmission theory. The numerical simulation has parameter controllability and has become another important research method of atmospheric turbulent light wave transmission. For the domestic and foreign literatures, the random phase screen model of atmospheric turbulence, the method of numerical generation of random phase screen and the spatial sampling constraints of numerical simulation of light transmission are reviewed. A comprehensive analysis of existing research results shows that it is necessary to conduct further research on the numerical simulation of anisotropic turbulent random phase screen generation and optical pulse transmission. In addition, the use of parallel computing equipment to increase the numerical simulation speed of atmospheric turbulent light transmission is also a key research topic in the future .