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.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2007年第4期77-81,共5页
Journal of National University of Defense Technology
关键词
时域磁场积分方程
时间步进算法
后期震荡
time domain magnetic field Integral equation
marching-on in time method
late-time oscillation
