DocumentCode :
979439
Title :
Fast Solution of Scattering From Conducting Structures by Local MLFMA Based on Improved Electric Field Integral Equation
Author :
Hu, Jun ; Nie, Zaiping ; Lei, Lin ; Tian, Li Jun
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Volume :
50
Issue :
4
fYear :
2008
Firstpage :
940
Lastpage :
945
Abstract :
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.
Keywords :
electric field integral equations; electromagnetic wave scattering; iterative methods; matrix multiplication; 3-D conducting structure; electric field integral equation; electromagnetic scattering; iterative convergence; local multilevel fast multipole algorithm; matrix-vector multiplication; Acceleration; Computational efficiency; Convergence of numerical methods; Electromagnetic radiation; Electromagnetic scattering; Integral equations; Iterative methods; MLFMA; Radar cross section; Radar scattering; Electric field integral equation (EFIE); electromagnetic scattering; fast solvers; radar cross section (RCS);
fLanguage :
English
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9375
Type :
jour
DOI :
10.1109/TEMC.2008.2004599
Filename :
4667655
Link To Document :
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