| Lanczos技术加速第二类Fredholm方程的快速求解 |
| |
| 引用本文： | 童创明,袁乃昌,洪伟. Lanczos技术加速第二类Fredholm方程的快速求解[J]. 国防科技大学学报, 2002, 24(1): 44-48 |
| |
| 作者姓名： | 童创明 袁乃昌 洪伟 |
| |
| 作者单位： | 1. 东南大学毫米波国家重点实验室,江苏,南京,210096
2. 国防科技大学电子科学与工程学院,湖南,长沙,410073 |
| |
| 基金项目： | 国家杰出青年基金资助项目 (6962 5 10 2 ) |
| |
| 摘 要： | 介绍了Lanczos技术加速第二类Fredholm方程求解的基本原理 ,结合矩量法预测了任意形状均匀介质柱体的单站雷达散射截面RCS。首先建立介质柱中的电场积分方程 ,然后采用矩量法将积分方程化为矩阵方程 ,再利用Lanczos技术求解矩阵方程得到介质柱内电场。计算结果表明 ,Lanczos技术可加快MOM矩阵方程的计算速度
|
| 关 键 词： | 矩量法 Lanczos技术 雷达散射截面 介质柱 |
| 文章编号： | 1001-2486(2002)01-0044-05 |
| 收稿时间： | 2001-08-29 |
| 修稿时间： | 2001-08-29 |
Fast Calculation of the Fredholm Equation of the Second Kind Based on Lanczos Technique |
| |
| TONG Chuangming,YUAN Naichang and HONG Wei. Fast Calculation of the Fredholm Equation of the Second Kind Based on Lanczos Technique[J]. Journal of National University of Defense Technology, 2002, 24(1): 44-48 |
| |
| Authors: | TONG Chuangming YUAN Naichang HONG Wei |
| |
| Affiliation: | TONG Chuang ming 1,YUAN Nai chang 2,HONG Wei 1 |
| |
| Abstract: | The basic principle of fast calculation of the Fredholm equation of the second kind based on Lanczos technique is introduced The method of moments in conjunction with Lanczos technique is applied to predict the mono static radar cross section (RCS) of an arbitrarily shaped two dimensional dielectric cylinder The electric field integral equation (EFIE) in the dielectric cylinder is established firstly, and then EFIE using the method of moments is changed into the matrix equation, and the electric field in the dielectric cylinder is obtained by solving the matrix equation using Lanczos technique It is observed that the Lanczos technique can result in considerable CPU time saving |
| |
| Keywords: | MOM Lanczos technique RCS dielectric cylinder |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《国防科技大学学报》浏览原始摘要信息 |
|
点击此处可从《国防科技大学学报》下载免费的PDF全文 |
