电大复杂目标电磁散射计算的特征基函数方法  

Characteristic Basis Function Method for Electromagnetic Scattering Computation of Electrically Large Complex Target

作　　者：侯兆国[1] 王超[1,2] 殷红成[2] 

机构地区：[1]中国传媒大学信息工程学院,北京100024 [2]目标与环境电磁散射辐射国防科技重点实验室,北京100854

出　　处：《制导与引信》2009年第2期24-29,共6页Guidance & Fuze

摘　　要：特征基函数方法(CBFM)是一种针对矩量法利用区域降阶技术的快速直接求解方法,通过一组构造在子区域上的特征基函数(CBF)描述目标的未知电流,实现矩量法方程的降阶和快速求解。文章将CBFM用于求解电大复杂目标电磁散射问题,并详细分析了该方法的计算精度和计算效率。计算结果与测量值的比较验证了该方法的精确性和高效性。The characteristic basis function method （ using domain decomposition technology based on convent set of special characteristic basis function （CBF） defined CBF ional M） is an efficient direct solver method of moment （MoM）. A on sub-domains are used to express the unknown surface currents in CBFM, so that a sharp reduction of the number of unknowns and the faster solution for MoM are achieved. The question of electrically large complex target electromagnetic scattering. The accuracy and efficiency of this method are discussed in detail, and verified by the agreement between numerical and measured results for some electrically large complex targets.

关 键 词：电磁散射 矩量法 特征基函数法 

分 类 号：TN011[电子电信—物理电子学]