新的迭代算法在粗糙表面电磁散射的应用

对于表面电磁散射 ,应用矩量法时 ,表面未知变量的数目非常大 ,即使对于一维表面也需要几千个未知变量 ,当我们求解矩阵方程时 ,计算机对求解的问题有内存和速度的限制。为了克服内存的限制 ,本文提出一种新的基于带形反演的迭代方法 ,并采用这一种新的迭代数值算法对周期表面的电磁散射问题进行了研究 ,并与矩阵反演方法进行了比较 ,所得结果表明 ,这种新的迭代法具有很好的收敛性 ,所提出的计算公式是可行的

Application of the new iterative algorithm to EM scattering

In this paper,a new iterative algorithm is presented.By using the method,electromagnetic wave scattering from period surface is computed.As we know,the computing results with moment (MM) are more accurate,but a great number of solved unknown coefficients have to be computed.Some iterative methods have been given for overcoming the memory restriction of the computer.By using a new iterative method,the electromagnetic scattering computation from period surface is presented in this paper,The computed result is compared with one by using Gauss matrix inverse method.It can be seen that the two results have a good agreement.