Numerical Study on Characteristics of Electromagnetic Wave Propagation along Random Rough Surface

本文提出了一种离散射线追踪方法，数值模拟了射线在沿着随机粗糙表面上的传播和后向散射，具有较好的精度。我们还开发了一种算法来生成各种类型的随机粗糙表面。它已被证明，系综平均的电场分布可以在一个简单的方式描述的基础上的1-射线或2-射线模型的振幅修正因子和距离的传播阶。

We have proposed a discrete ray tracing method to numerically simulate propagation along random rough surface and back scattering from it with a good accuracy. We have also developed an algorithm to generate various types of random rough surfaces. It has been demonstrated that the ensemble averages of electric field distributions can be described in a simple fashion based on the 1-ray or 2-ray model with amplitude modification factor and propagation order of distance.