计算物理 ›› 2010, Vol. 27 ›› Issue (2): 269-273.

• 论文 • 上一篇    下一篇

一种新的计算复杂目标电磁散射的MoM-SBR/PO混合法

耿方志1, 彭世蕤1, 秦开兵1, 潘英锋1, 孙宏伟2   

  1. 1. 空军雷达学院信息对抗系, 湖北 武汉 430019;
    2. 空军93764部队装备处, 内蒙古 包头 100854
  • 收稿日期:2008-10-22 修回日期:2009-05-26 出版日期:2010-03-25 发布日期:2010-03-25
  • 作者简介:耿方志(1978-),男,山东惠民,讲师,博士,从事计算电磁学研究.

An MoM-SBR/PO Hybrid Method for Scattering by Complex Objects

GENG Fangzhi1, PENG Shirui1, QIN Kaibing1, PAN Yingfeng1, SUN Hongwei2   

  1. 1. Air Force Radar Academy, Wuhan 430019, China;
    2. Army 93764 of Air Force, Baotou 014040, China
  • Received:2008-10-22 Revised:2009-05-26 Online:2010-03-25 Published:2010-03-25

摘要: 针对三维复杂电大尺寸金属目标,在传统MoM-PO混合法的基础上,引入基于射线密度归一化(RDN)概念的射线弹跳法(SBR),计算电大PO区域内部的多次反射影响,从而得到一种新的MoM-SBR/PO混合方法,该方法区别于大部分改进的MoM-PO混合法对PO区域内多次反射贡献的处理,避免了迭代物理光学法涉及的多次矩阵相乘问题.与其它几种方法进行比较,结果显示吻合较好.

关键词: 矩量法, 物理光学法, 射线追踪法, 混合法, 射线密度归一化

Abstract: For electromagnetic scattering of 3-D complex electrically large conducting targets,a new hybrid method MoM-SBR/PO is presented to calculate multi-reflection contribution in the PO region, by introducing SBR method that based on Ray-Density Normalization (RDN). Complex matrix multiplication procedure is avoided in this method. Finally, numerical results are presented and compared with reference MoM2D solutions in order to illustrate accuracy and efficiency of the proposed approach.

Key words: method of moment, physical optics, shooting and bouncing ray, hybrid method, ray-density normalization

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