| 引用本文: | 任猛,周东明,刘锋,等.时域磁场积分方程迭代求解.[J].国防科技大学学报,2007,29(4):77-81.[点击复制] |
| REN Meng,ZHOU Dongming,LIU Feng,et al.The Iterative Solver for Time Domain Magnetic Field Integral Equation[J].Journal of National University of Defense Technology,2007,29(4):77-81[点击复制] |
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| 时域磁场积分方程迭代求解 |
| 任猛1, 周东明1, 刘锋1, 贺文辉2, 何建国1 |
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(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)
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| 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。 |
| 关键词: 时域磁场积分方程 时间步进算法 后期震荡 |
| DOI： |
| 投稿日期：2006-10-01 |
| 基金项目: |
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| The Iterative Solver for Time Domain Magnetic Field Integral Equation |
| REN Meng1, ZHOU Dongming1, LIU Feng1, HE Wenghui2, HE Jianguo1 |
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(1.College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;2.Xian Communication Institation, Xi'an 710106, China)
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| Abstract: |
| 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. |
| Keywords: time domain magnetic field Integral equation marching-on in time method late-time oscillation |
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