电大目标瞬态散射的时域自适应积分算法  

Time domain adaptive integral method for transient scattering from electrically large targets

作　　者：李高升[1] 王文举[1] 刘培国[1] 何建国[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《信息与电子工程》2011年第4期434-438,共5页information and electronic engineering

基　　金：国家安全重大基础研究资助项目(613138);武器装备预研基金资助项目(9140A04020310KG0112;9140A31020609KG0170)

摘　　要：为降低时域积分方程(TDIE)计算电大目标瞬态散射时的计算量和内存需求,研究了时域自适应积分算法(TDAIM)。基于TDAIM的单元分组思想,给出了目标瞬态散射的计算流程,并在.Net平台下对典型目标进行了编程实现。在此基础上,针对球锥体和舰船等典型目标进行了仿真。仿真结果表明:本文实现的时域自适应算法与矩量法(MOM)计算结果吻合较好。该算法为解决电大目标瞬态电磁散射问题提供了一条有效途径。To reduce the high computational complexity as well as large memory requirements when using Time Domain Integral Equation（TDIE） to compute transient scattering from electrically large targets, Time Domain Adaptive Integral Method（TDAIM） is studied. Based on the idea of unit grouping of TDAIM, calculating flow of target transient responses is presented. Programming of typical targets in the platform of .Net is implemented after that. Based on this, simulations of a ball-cone and a warship are completed. Numerical results reveal that TDAIM carried out in this paper tallies well with Method of Moment（MOM）, which offers an efficient method for solving the problem of electromagnetic scattering from targets with large scale.

关 键 词：电大目标 电磁散射 时域自适应积分算法 时域积分方程 

分 类 号：TM15[电气工程—电工理论与新技术]