一种快速计算阻抗矩阵的有效方法  

A fast efficient method for computing impedance matrix

作　　者：胡怀宏[1] 孙玉发[1] 

机构地区：[1]安徽大学电子科学与技术学院,安徽合肥230039

出　　处：《合肥工业大学学报（自然科学版）》2011年第4期617-619,共3页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(60771034);安徽省教育厅自然科学研究重点资助项目(KJ2010A020)

摘　　要：文章以矩量法和RWG基函数为基础,将导体表面剖分成一定数量的三角单元,然后将每个三角单元分成9个完全一样的小三角块,假设被积函数在每个小三角块上为常数,那么阻抗矩阵元素计算中的积分就可以用求和来代替;应用该方法计算了导体平板和导体球的双站RCS,数值计算表明:该方法所得结果与矩量法计算结果吻合良好,而阻抗矩阵填充时间大大减少。Based on the method of moments（MOM） and the Rao-Wilton-Glisson（RWG） basis function,the perfect electric conductor surface is discretized into planar triangular patches.Then each planar triangular patch is divided into nine equal small triangles.Assuming that the integrand is constant in each small triangle,the double integrals for computing impedance matrix element can be replaced by finite summations.The bistatic radar cross section（RCS） of the conductor plate and sphere is computed by the presented method in this paper.The numerical results are in good agreement with those obtained by the MOM,and the filling time of the impedance matrix is reduced considerably.

关 键 词：矩量法 阻抗矩阵元素 雷达散射截面 质心切分 

分 类 号：TN011[电子电信—物理电子学]