Fast Solution of Scattering From Conducting Structures by Local MLFMA Based on Improved Electric Field Integral Equation

被引：13

作者：

Hu, Jun ^{[1
]}

Nie, Zaiping ^{[1
]}

Lei, Lin ^{[1
]}

Tian, Li Jun ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 610054, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2008年 / 50卷 / 04期

基金：

美国国家科学基金会;

关键词：

Electric field integral equation (EFIE); electromagnetic scattering; fast solvers; radar cross section (RCS);

D O I：

10.1109/TEMC.2008.2004599

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a local multilevel fast multipole algorithm (LMLFMA) based on an improved electric field integral equation (IEFIE) is developed to achieve fast and efficient solution of electromagnetic scattering from 3-D conducting structures. The IEFIE is used to reduce iteration number, and LMLFMA is applied to further accelerate the computation of matrix-vector multiplications in iteration, in which only the local interactions between subscatterers are taken into account. Numerical results show that the present method attains faster iterative convergence than traditional EFIE and less computational cost than MLFMA. The speedup can achieve at least 4-5 times while keeping an rms error of less than 2 dB.

引用

页码：940 / 945

页数：6

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