介绍了一种可用以快速计算任意形状的电大尺寸导体目标散射和辐射特性的软件包.这一软件包是建立在用矩量法求解电磁场积分方程的基础之上的.在软件包中,多层快速多极算法被用以加速矩阵向量乘积的运算,ILUT预处理算法被用以加快迭代算法的收敛速度.对于任意的线-面、面-面连接情况,在多面连接处,引入了满足电流连续性方程的新的用以设置基函数的方法.软件包中实现了完善的前后处理模块,可以方便的引入模型数据,剖分网格,以及对计算结果作后处理.

A software package for fast computation of electromagnetic scattering and radiation characteristics of large complex perfect conducting object is introduced in this paper.This software package is based on the electromagnetic field integral equation and moment method(MOM).In this software package,multilevel multipole method is used to compute the matrix-vector product quickly,and ILUT preprocessing is used to improve the convergence speed of iterative method.For arbitrary connection of line-surfprocessing and surface-surface,a new method is used to set the basic function based on the continuity of current on the junction.Prefect pre-processing and post-processing modules are implemented in this software package,they can be used to import models,generate meshes,and post-process computation results.

TN957