A new model of short-term optical-beam spreading in a turbulent medium is established by Rytov Approximation, Geometrical-Optics Approximation (GOA) and the Gaussian large-scale filter function.

• 根据Rytov近似和几何光学近似,在引入一个高斯大尺度滤波函数时建立了一个湍流介质中新的短期光束扩展模型。