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高精度离散在二维快速多极子中的应用 被引量：1

Application of the high precision discretizing method to the 2D fast multipole algorithm
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摘要 文章将双共轭梯度-快速多极子(BICG-FMA)应用于二维电大导体的电磁散射问题,并对该算法进行了详细地分析,将近区作用采用零阶、二阶近似和数值积分3种不同方式处理。数值计算结果表明,近区采用二阶近似具有较高的精度和收敛速度,其计算精度与积分相当,而计算时间小于零阶近似,随着散射体电尺寸的增加,能更加有效地缩短计算时间。 The biconjugate gradient and fast multipole algorithm （BICG-FMA） is applied to analysis of electromagnetic scattering of two-dimensional electrically large conducting targets. The FMA is analyzed in detail. Matrix elements of the near field are calculated by zero-order approximation, two-order approximation and the numerical quadrature method respectively. The numerical experiments demonstrate that the accuracy and efficiency are improved by two-order approximation for the near field, and this method has more advantages when electrically large targets are concerned.
作者 宋开宏 许金根 吴先良
机构地区 安徽大学计算智能与信号处理教育部重点实验室
出处 《合肥工业大学学报（自然科学版）》 CAS CSCD 北大核心 2008年第5期801-804,共4页 Journal of Hefei University of Technology：Natural Science
基金 国家自然科学基金资助项目(60671051)
关键词 快速多极算法 电磁散射 二阶近似 双共轭梯度法 fast multipole algorithm electromagnetic scattering two-order approximation biconjugate gradient method
分类号 TN011 [电子电信—物理电子学]
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参考文献8

  • 1Harrington R F. Field computation by moment methods [M]. 2nd ed. New York: IEEE Press,1993:42-46.
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二级参考文献7

  • 1Harrington R F, Field computation by moment methods [M]. New York: IEEE Press, 1993:41--81.
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同被引文献6

  • 1Harrington R F. Field computation by moment methods[M]. New York : IEEE Press, 1993.
  • 2Peterson A F, Ray S L, Mittra R. Computational methods for electromagnetics[M]. New York : IEEE Press, 1998.
  • 3Harrington R F. Time-harmonic electromagnetic fields[M]. New York : IEEE Press, 2001.
  • 4Xu Y S, Wang K. Discretized boundary equation method for two-dimensional scattering problems[J]. IEEE Trans. on Antenna and Propagation, 2007,55(12) :3550 - 3564.
  • 5Chew Weng Cho, Jin Jianming, Michielssen E, et al. Fast and efficient algorithms in computational electromagnetics[M]. Boston: Artech House Inc. Press, 2001.
  • 6宋开宏,吴先良,陈明生.改进的离散化方法在二维电磁散射中的应用[J].系统工程与电子技术,2008,30(1):68-70. 被引量：4

引证文献1

二级引证文献3

合肥工业大学学报（自然科学版）
2008年 第5期

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