| 任意形状目标时域电磁散射的稳定求解 |
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| 引用本文： | 王生水,陈忠宽,柴舜连,毛钧杰. 任意形状目标时域电磁散射的稳定求解[J]. 微波学报, 2007, 23(4): 6-10,23 |
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| 作者姓名： | 王生水 陈忠宽 柴舜连 毛钧杰 |
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| 作者单位： | 国防科技大学电子科学与工程学院,长沙,410073 |
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| 摘 要： | 针对时域电场积分方程存在的晚时震荡问题,分析比较了当前通用的隐式时间步进算法和基于拉盖尔多项式的阶数步进算法,计算了任意形状的三维导体、介质目标的时域电磁散射。结果表明,基于拉盖尔多项式的阶数步进算法有效地消除了晚时震荡问题,并且其稳定性与时间步的数目无关,而仅决定于拉盖尔多项式的阶数。
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| 关 键 词： | 矩量法 时域电场积分方程 拉盖尔多项式 时间步进 阶数步进 |
| 文章编号： | 1005-6122（2007）04-0006-05 |
| 收稿时间： | 2006-03-28 |
| 修稿时间： | 2006-03-282006-07-05 |
A Stable Solution to Calculate the Time Domain Electromagnetic Scattering by Arbitrary Shaped Bodies |
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| WANG Sheng-shui,CHEN Zhong-kuan,CHAI Shun-lian,MAO Jun-jie. A Stable Solution to Calculate the Time Domain Electromagnetic Scattering by Arbitrary Shaped Bodies[J]. Journal of Microwaves, 2007, 23(4): 6-10,23 |
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| Authors: | WANG Sheng-shui CHEN Zhong-kuan CHAI Shun-lian MAO Jun-jie |
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| Affiliation: | College of Electronic Science and Engineering National University of Defense Technology, Changsha 410073, China |
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| Abstract: | In this paper,two methods for solving the time-domain EFIE in analyzing the transient electromagnetic response from three-dimensional(3D) conducting and dielectric bodies are studied.The two methods,both based on the method of moment, are implicit marching-on-in-time(MOT) method and marching-on-in-degree(MOD) method which based on the Laguerre polynomial.We calculated the transient electromagnetic response of 3D conducting and dielectric bodies with arbitrary shape using the two methods,the results indicate that the MOD method eliminate the late-time-oscillate effectively and give a higher precision than the implicit MOT method. |
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| Keywords: | Method of moment Time domain electric field integral equation Laguerre polynomial Marching on in time Marching on in degree |
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