| 两种积分方程法求解均匀介质体散射问题的比较 |
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| 引用本文： | 邓楚强,盛新庆.两种积分方程法求解均匀介质体散射问题的比较[J].北京理工大学学报,2008,28(10):898-901. |
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| 作者姓名： | 邓楚强 盛新庆 |
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| 作者单位： | 北京理工大学,信息科学技术学院电磁仿真中心,北京,100081;北京理工大学,信息科学技术学院电磁仿真中心,北京,100081 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 针对均匀介质体散射问题,对比研究了基于2种积分方程的5种矩量法实施方案的求解精度和效率.分析了单积分方程和Poggio-Miller-Chang-Harrington-Wu (PMCHW)方程各种矩量法实施方案的特点和效率,通过数值计算进行验证,并对相应的数值现象作出解释.结果表明:基于单积分方程的矩量法与PMCHW方程矩量法一样精确,迭代收敛速度更快;基于单积分方程的磁场积分方程,矩量法生成矩阵和迭代求解的效率最高,但存在谐振点.
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| 关 键 词： | 单积分方程 PMCHW方程 矩量法 均匀介质体 |
| 收稿时间： | 2008/3/20 0:00:00 |
Comparison of Two Integral Equation Approaches for Analysis ofScattering by Homogeneous Dielectric Bodies |
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| DENG Chu-qiang and SHENG Xin-qing.Comparison of Two Integral Equation Approaches for Analysis ofScattering by Homogeneous Dielectric Bodies[J].Journal of Beijing Institute of Technology(Natural Science Edition),2008,28(10):898-901. |
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| Authors: | DENG Chu-qiang and SHENG Xin-qing |
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| Institution: | Center for Electromagnetic Simulation, School of Information Science and Technology,Beijing Institute of Technology, Beijing 100081, China;Center for Electromagnetic Simulation, School of Information Science and Technology,Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Methods of moments based on different integral equations are comparatively studied in accuracy and efficiency for scattering by homogeneous bodies.Computational characteristics of various implementation approaches are analyzed for the single integral equation and the Poggio-Miller-Chang-Harrington-Wu(PMCHW) equation.The numerical performance of various implementations is shown by numerical experiments and explained in the paper.Conclusions of different implementation approaches are finally presented in accuracy and efficiency. |
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| Keywords: | single integral equation Poggio-Miller-Chang-Harrington-Wu(PMCHW) equation method of moments homogeneous bodies |
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