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应用科学学报 ›› 1999, Vol. 17 ›› Issue (1): 122-126.

• 论文 • 上一篇    

CG-FMM应用于电磁散射截面的求解

曾霖, 倪维立, 肖衍明   

  1. 上海大学
  • 收稿日期:1997-09-08 修回日期:1997-11-06 出版日期:1999-03-31 发布日期:1999-03-31

The Conjugate Gradient-Fast Multipole Method(FMM) for Electromagnetic Scattering Problems

ZENG LIN, NI WEILI, XIAO YANMING   

  1. College of communication and information Engineering, Shanghai University, Shanghai 201800
  • Received:1997-09-08 Revised:1997-11-06 Online:1999-03-31 Published:1999-03-31

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摘要： 将共轭梯度快速多极子法(CG-FMM)应用于散射截面的求解中.对二维散射体散射截面的求解作了较详细的讨论,提出了相应的参数及迭代终止判据的选取方法,使得算法在求解电大尺寸散射体散射截面时,能更有效地缩短计算时间.

关键词: 雷达散射截面, 电磁散射, 数值方法

Abstract: In this paper, CG -FMM is applied for the solution of RCS in electromagnetic scattering problems. Careful discussion is made on the RCS solutions for various 2 -D scatterers. Several parameters and the iterative terminate criterion have been presented. Comparing with other methods, this algorithm has more advantage when electrically large objects are concerned.

Key words: radar cross section, numerical methods, scattering