时域磁场积分方程迭代求解  

The Iterative Solver for Time Domain Magnetic Field Integral Equation

作　　者：任猛[1] 周东明[1] 刘锋[1] 贺文辉[2] 何建国[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073 [2]西安通信学院,陕西西安710106

出　　处：《国防科技大学学报》2007年第4期77-81,共5页Journal of National University of Defense Technology

摘　　要：利用时间步进算法(MOT)求解时域电场积分方程解决导体目标瞬态散射问题时,其计算结果不稳定,会发生后期震荡现象。通过对时域磁场积分方程显式和隐式方案的分析,推导出一种隐式的迭代方案,它不但易于实现,而且数值结果表明这种时域磁场积分方程MOT迭代方案比时域电场积分方程MOT具有更好的稳定性,延缓了后期震荡效应。Time Domain Electric Field Integral Equation（TDEFIE） based on Marching-On in Time（MOT） algorithm suffers from late time oscillations for analysis of scattering from conducting targets,which will induce late-time instability in MOT algorithm.An implicit iterative solver is presented by the analysis of explicit and implicit solutions of Time Domain Magnetic Field Integral Equation（TDMFIE）,and then it can be implemented more easily.Numerical results demonstrate that it has more excellent stability compared with TDEFIE and that the proposed solver postpones the late-time oscillation for TDMFIE MOT iterative solution.

关 键 词：时域磁场积分方程 时间步进算法 后期震荡 

分 类 号：TN011[电子电信—物理电子学]