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一种新的混合基函数在电磁散射问题中的应用
引用本文:耿方志,童创明,项春望,邓发升. 一种新的混合基函数在电磁散射问题中的应用[J]. 系统工程与电子技术, 2006, 28(6): 827-829
作者姓名:耿方志  童创明  项春望  邓发升
作者单位:空军工程大学导弹学院,陕西,三原,713800
基金项目:空军工程大学学术(联合)基金资助课题(KGD-XL02-2004-05)
摘    要:三维电磁散射问题通常采用电场积分方程(electric field integral equation,EFIE)结合矩量法(meth-od of moment,MoM)求解,而基函数是决定矩量法计算精度和效率的重要因素。采用具有降维效果的双线性四边形模型来模拟实际物体表面,提出了一种基于该四边形的混合域基函数,应用于金属物体的电磁散射特性的计算仿真中。该混合域基函数集成了分域基和全域基的优点,结果表明,相比于基于三角形剖分的RWG函数(rao,wilton and glisson,RWG),混合基函数能够在减少未知数个数的同时获得较高的计算精度,具有计算精度高、速度快、内存要求低的特点。

关 键 词:矩量法  混合域基函数  雷达散射截面
文章编号:1001-506X(2006)06-0827-03
修稿时间:2005-06-21

Application of a new hybrid basis function of MoM to electromagnetic scattering problems
GENG Fang-zhi,TONG Chuang-ming,XIANG Chun-wang,DENG Fa-sheng. Application of a new hybrid basis function of MoM to electromagnetic scattering problems[J]. System Engineering and Electronics, 2006, 28(6): 827-829
Authors:GENG Fang-zhi  TONG Chuang-ming  XIANG Chun-wang  DENG Fa-sheng
Abstract:The electromagnetic scattering prediction of three-dimensional objects is often treated with EFIE-MoM,and the basis function is one of the important factors affecting the accuracy and efficiency of the method.Bilinear quadrangular with reduced-dimension effect is used to simulate the real surface of the complex object,and a new hybrid basis function based on this quadrangular is presented.The hybrid basis function that incorporates the advantages of sub-domain and entire-domain within MoM is used for the calculation of RCS on metal objects,the accuracy and efficiency of the proposed function are demonstrated by numerical results.
Keywords:method of moment  hybrid-domain basis function  radar cross section  
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