物理学报Issue(20)：196-202,7.DOI:10.7498/aps.62.204102
应用改进的特征基函数法和自适应交叉近似算法快速分析导体目标电磁散射特性
Fast analyses of electromagnetic scattering characteristics from conducting targets using improved and the adaptive cross approximation algorithm
摘要
Abstract
Constructing characteristic basis functions (CBFs) is a key step of characteristic basis function method (CBFM). But it is required to set adequate plane wave excitations in each sub-block, which leads to the increased number of characteristic basis functions and the longer time consumed in singular value decomposition of traditional method. In order to accelerate the construction of CBFs, an improved CBFM is presented, which fully considers the mutual coupling effects among sub-blocks and then the secondary level characteristic basis function (SCBF) is obtained, therefore the number of plane wave excitations is reduced greatly, and so is the number of characteristic basis functions. The adaptive cross approximation algorithm is also used to accelerate the matrix-vector multiplication procedure of generating SCBF and constructing the reduced matrix. Numerical results demonstrate that the proposed method is accurate and efficient.关键词
电磁散射/矩量法/特征基函数法/自适应交叉近似Key words
electromagnetic scattering/method of moments/characteristic basis function method/adaptive cross approximation引用本文复制引用
王仲根,孙玉发,王国华..应用改进的特征基函数法和自适应交叉近似算法快速分析导体目标电磁散射特性[J].物理学报,2013,(20):196-202,7.基金项目
国家自然科学基金(批准号:61172020)、高等学校博士学科点专项科研基金(批准号:20123401110006)、安徽大学研究生学术创新基金(批准号:10117700470)和安徽大学211工程基金(批准号:ZYGG201202)资助的课题.*Project supported by the National Natural Science Foundation of China (Grant No.61172020), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No.20123401110006), the Academic Innovation Research for College Graduates of Anhui University, China (Grant No.10117700470), and the Fund for 211 Project of Anhui University, China (Grant No. ZYGG201202) （批准号:61172020）
