| 系数优化在改善时间步进算法稳定性中的应用 |
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| 引用本文： | 刘磊承,陈明生,吴先良.系数优化在改善时间步进算法稳定性中的应用[J].合肥工业大学学报(自然科学版),2011(9):1358-1360,1364. |
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| 作者姓名： | 刘磊承 陈明生 吴先良 |
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| 作者单位： | 安徽大学电子科学与技术学院;合肥师范学院物理与电子工程系; |
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| 基金项目： | 国家自然科学基金资助项目(60931002) |
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| 摘 要： | 隐式时间步进算法在求解二维物体的散射时,随着时间的推移,也会出现后时不稳定性的问题.文章在先五步后三步平均公式的基础上利用误差公式对系数进行筛选,改善了原公式在隐式时间步进算法中计算二维物体时产生的后时震荡情况；采用基于时域电场积分方程的隐式时间步进算法,分别计算了TM高斯脉冲入射到无限长导体圆柱和导体方柱时的导体表面...
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| 关 键 词： | 时域电场积分方程 隐式时间步进算法 不稳定性 |
Application of coefficient optimization in improving the stability of marching-on-in-time scheme |
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| LIU Lei-cheng,CHEN Ming-sheng,WU Xian-liang.Application of coefficient optimization in improving the stability of marching-on-in-time scheme[J].Journal of Hefei University of Technology(Natural Science),2011(9):1358-1360,1364. |
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| Authors: | LIU Lei-cheng CHEN Ming-sheng WU Xian-liang |
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| Institution: | LIU Lei-cheng1,CHEN Ming-sheng2,WU Xian-liang2(1.School of Electronic Science and Technology,Anhui University,Hefei 230039,China,2.Dept.of Physics and Electronic Engineering,Hefei Normal University,Hefei 230061,China) |
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| Abstract: | When using the implicit marching-on-in-time(IMOT) scheme to solve the scattering of two-dimensional conducting objects,the later-time instability of the scheme may arise.In this paper,the error formulation is used to optimize the twice-averaging scheme's coefficient to restrain the two-dimensional conducting objects' later-time oscillation produced by the implicit marching-on-in-time scheme.The induced current of an infinite circular cylinder and an infinite square cylinder illuminated by a TM Gaussian puls... |
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| Keywords: | time domain electric field integral equation implicit marching-on-in-time scheme instability |
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