孙玉发, 卢克, 王国华. 介质目标电磁散射特性的多层特征基函数法分析[J]. 电波科学学报, 2013, 28(1): 92-96.
      引用本文: 孙玉发, 卢克, 王国华. 介质目标电磁散射特性的多层特征基函数法分析[J]. 电波科学学报, 2013, 28(1): 92-96.
      SUN Yufa, LU Ke, WANG Guohua. Analysis of electromagnetic scattering characteristics from dielectric objects using multilevel characteristic basis function method[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(1): 92-96.
      Citation: SUN Yufa, LU Ke, WANG Guohua. Analysis of electromagnetic scattering characteristics from dielectric objects using multilevel characteristic basis function method[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(1): 92-96.

      介质目标电磁散射特性的多层特征基函数法分析

      Analysis of electromagnetic scattering characteristics from dielectric objects using multilevel characteristic basis function method

      • 摘要: 特征基函数法是近几年提出的一种基于分块和高阶基函数概念求解电磁散射问题的快速算法.为了更有效地分析电大尺寸多目标的电磁散射问题,将基于Foldy-Lax多径散射方程的特征基函数法扩展为多层特征基函数法,通过对子域进行多层划分来控制生成矩阵维数的大小和计算精度.应用多层特征基函数法计算了介质目标的远区散射场,数值结果与传统特征基函数法的计算结果吻合良好,且计算效率明显提高.

         

        Abstract: Characteristic basis function method (CBFM) based on the conceptions of grouping and highlevel basis function is a novel approach for the fast solution of electromagnetic scattering problems. In order to analyze the electromagnetic scattering problems of electrically large or multiple objects more effectively, multilevel characteristic basis function method based on Foldy-Lax multiple scattering equations is presented in this paper. The size of the generator matrix and the computational accuracy are controlled by multilayer division of subblocks in the presented method. Multilevel characteristic basis function method is used to calculate the far scattered field of dielectric objects. The numerical results show that the presented method retains excellent accuracy and the computational efficiency is improved considerably in comparison with the traditional characteristic basis function method.

         

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