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多层快速多极子算法中修正多极子模式数技术 被引量:1

Modified multipole number technique in MLFMA
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摘要 为了提高多层快速多极子算法求解电磁散射问题的效率,提出了两种修正多极子模式数的方法。与传统的多层快速多极子相比,该方法通过有效地减少多极子模式数,从而减少了迭代求解矩阵方程时的矩矢相乘时间和内存存储需求。计算结果表明,该方法提高了电磁散射问题求解的计算效率,保留了原有方法的精度,同时保持了多层快速多极子算法的计算复杂度,并且简单易于实现,十分适于三维电大结构电磁散射问题的求解。 In order to improve the efficiency of solving electromagnetic scattering problems by the multilevel fast multipole algorithm(MLFMA),two novel strategies are proposed to determine the multipole numbers.Comparing with traditional MLFMA,through reduction of the multipole numbers,the proposed methods can reduce CPU time in the iteration and the memory requirement.Numerical results show that the modified methods improve the efficiency of solution while retaining the high accuracy and the complexity of O(Nlog N) for the computation of matrix-vector multiplication by MLFMA.This is why it is suitable for electromagnetic scattering problems of 3D electrically large structures.
出处 《系统工程与电子技术》 EI CSCD 北大核心 2010年第12期2557-2560,共4页 Systems Engineering and Electronics
基金 国家自然科学基金(60971032) 国防基金(G02010201PJ08DZ0235 G02010201PJ09DZ0212)资助课题
关键词 修正多极子模式数 多层快速多极子算法 雷达散射截面 电大目标 混合场积分方程 modified multipole number multilevel fast multipole algorithm radar cross section electrically large structure combined field integral equation
作者简介 温彬(1984-),男,硕士研究生.主要研究方向为计算电磁学。E-mail:wb952@hotmail.com
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  • 1Rokhlin V.Rapid solution of integral equation of scattering theory in two dimensions[J].Journal of Computational physics,1990,86(2):414-439.
  • 2Song J M,Lu C C,Chew W C.Multilevel fast multipole algorithm for electromagnetic scattering by large complex obiects[J].IEEE Trans.on Antennas Propagation,1997,45(10):1488-1493.
  • 3胡俊,聂在平,温剑,等.一种精确通用高效的电磁仿真工具——AUEST_E软件[C] //第六届全国电磁兼容性学术会议,2004:126-129.
  • 4Hu J,Nie Z P,Lei L,et al.Fast solution of scattering from conductingstructures by local MLFMA based on improved electric field integral equation[J].IEEE Trans.on EMC,2008,50(4):940-945.
  • 5Velamparambil S,Chew W C,Song J M.10 million unknowns:is it that big?[J].IEEE Trans.on Antennas Propagation Magazine,2003,45(2):43-58.
  • 6Chew W C,Jin J M,Lu C C,et al.Fast solution methods in electromagnetics[J].IEEE Trans.on Antennas and Propagation,2007,45(3):533-543.
  • 7Gürel L,Ergül O.Efficient solution of the combined-field integral equation wtth the parallel multilevel fast multipole algorithm[C] //Computational Electromagnetics Workshop,2007:16-21.
  • 8Ergül O,Malas T,Gürel L.Solution of extremely large integral equation problems[C] //IEEE Antennas Propagation Symposium,2007:166-169.
  • 9Pan X M,Sheng X Q.A sophisticated parallel MLFMA for scattering by extremely large targets[J].IEEE Antennas and Propagation Magazine,2008,50(3):129-138.
  • 10Wagner R L,Chew W C.A ray propagation fast multipole algorithm[J].Macrowave and Optical Technology Letters,1994,7(10):435-438.

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