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快速分析电大腔体电磁散射的混合算法 被引量：4

A fast hybrid algorithm for analyzing EM scattering by electrically Large cavity
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摘要 为提高电大腔体电磁散射分析的效率,提出将迭代物理光学法(IPO)与快速多极子方法(FMM)相结合的混合算法IPO+FMM,给出该混合算法的数学模型推导,该算法可将每迭代步的计算量由O(N2)降到O(N1.5),最后分析了二种不同形状的电大尺寸腔体的雷达散射截面。数值结果表明,该混合算法与IPO算法相校,精度相当但效率有显著提高。 An efficient hybrid approach by integrating the iterative physical optics （IPO） and fast multipole method（FMM） is presented in this paper to improve the computational efficiency of EM scattering by electrically Large cavity. The mathamtical model of the approach is built and the compute operation count of per iterative step is reduce to O（N^1.5） from the originally O（N^2） for IPO method. Taking three cavities for examples, it is shown from the simulation results of RCS that the hybrid method presented is much more efficient than IPO method with the same accuracy.
作者 岳慧 高本庆 李伟明 王学田
机构地区 北京理工大学信息科学技术学院电磁兼容与微波系统实验室
出处 《电波科学学报》 EI CSCD 北大核心 2006年第2期161-165,共5页 Chinese Journal of Radio Science
关键词 快速多极子-迭代物理光学方法(IPO+FMM) 腔体 雷达散射截面(RCS) IPO＋FMM, cavities, RCS
分类号 O441.4 [理学—电磁学]
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参考文献16

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二级参考文献20

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共引文献38

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二级引证文献8

电波科学学报
2006年 第2期

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