粗糙表面TE散射的Monte Carlo摸拟

研究了随机粗糙表面的电磁散射问题.在用数值方法研究粗糙表面电磁散射过程中,经常遇到大型的数值计算问题,为此提出一种新的基于积分方程的区域分散算法.采用这种算法,可以将大型计算问题分解为几个小型的问题进行求解.用此新的算法对粗糙表面的散射进行了Monte Carlo模拟.散射计算结果与用直接反演的计算比较结果表明,两种方法符合很好,从而证明了所提方法的可行性.另外,从散射结果我们也得到粗糙表面的背向加强现象.

The Monta Carlo Simulation of EM Scattering from Rough Surface

In this papre the scattering from rough surface is studied. In order to solve the large scale problems, a new partitioning method is developed, by which a large problem can be divided into several small problems to solve. The new method is used to solve the EM scattering from rough surface through the Monte Carlo simulation method. The simulated results are compared with the ones that are computed by matrix direct inverse method. The results show that a good agreement between the two results, which prove the new method is practical. Finally, thd back scattering enhancement phenomenon is also observed in the computed results.