摘要
为进一步提高电大尺寸目标散射求解能力,该文将一种新的基于曲边三角形的高阶叠层矢量基函数运用到矩量法中,并与多层快速多极子方法结合,分析了电大尺寸目标的电磁散射特性。与低阶基函数相比,在计算精度相同的情况下,高阶叠层基函数所需的未知量数目约为零阶其函数的40%。计算实例表明,该方法具有较高的精确性和有效性。
A new set of higher order hierarchical basis functions based on curvilinear triangular patch is proposed to analyse the electromagnetic scattering and radiation of electrical-large targets. The multilevel fast multipole method is used to accelerate matrix-vector product. This higher order scheme leads to a reduction in the number of unknowns without compromising the accuracy of geometry modeling. Numerical examples are given to demonstrate the accuracy and efficiency of the proposed method in radar cross section calculations .
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2008年第5期590-593,共4页
Journal of Nanjing University of Science and Technology
基金
中国博士后科学基金(20070411054)
江苏省博士后科学基金(0701017B)
国家自然科学基金(60701005)
关键词
电磁散射
高阶叠层基函数
多层快速多极子
electromagnetic scattering
higher order hierarchical basis functions
multilevel fast multipole method
