摘要
随着隐身技术的深入发展,以缝隙为代表的弱散射源影响不断增大。文章将等效偶极子法与自适应交叉近似算法相结合以加速阻抗矩阵元素的填充,实现任意电大开缝导体雷达散射截面的快速计算。与矩量法相比,该方法可以大大降低计算时间和内存消耗。
With the development of stealth technology in recent years , the importance of the feeble scattering source ,w hich is represented by the slits ,is increasing .In this paper ,the equivalent dipole-moment(EDM ) method and the adaptive cross approximation (ACA) algorithm are used to fill the im-pedance matrix elements efficiently , thus achieving the fast calculation of the radar cross section (RCS) for any electrically large slotted conductor .Compared with the method of moments(MOM) , the proposed method in the paper could decrease the computing time and save memory dramatically .
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
北大核心
2014年第4期440-443,共4页
Journal of Hefei University of Technology:Natural Science
基金
国家自然科学基金资助项目(61172020)
高等学校博士学科点专项科研基金资助项目(20123401110006)
安徽大学研究生学术创新基金资助项目(10117700496)
关键词
缝隙
等效偶极子
自适应交叉近似
雷达散射截面
矩量法
slit
equivalent dipole-moment(EDM)
adaptive cross approximation(ACA)
radar crosssection(RCS)
method of moments(MOM)