| 渐近波形估计技术在三维电磁散射问题快速分析中的应用 |
| |
| 引用本文： | 孙玉发,徐善驾.渐近波形估计技术在三维电磁散射问题快速分析中的应用[J].电子学报,2002,30(6):794-796. |
| |
| 作者姓名： | 孙玉发 徐善驾 |
| |
| 作者单位： | 1. 中国科学技术大学电子工程与信息科学系,安徽合肥 230027;2. 安徽大学电子工程与信息科学系,安徽合肥 230039 |
| |
| 基金项目： | 教育部年度重点科研基金 (No .0 0 1 79) |
| |
| 摘 要： | 本文将渐近波形估计技术应用到矩量法中,计算了三维理想导体目标的宽带雷达散射截面(RCS)和单站RCS方向图.用矩量法求解电场积分方程,得到给定频率点、给定方向入射波照射下的导体表面电流密度,应用渐近波形估计技术分别得到频带内任意频率点以及任意角度入射波照射下的导体表面电流密度,进而计算出宽带RCS和单站RCS方向图.计算结果表明渐近波形估计技术与矩量法结合可以逼近矩量法逐点计算的结果,且计算效率大大提高.
|
| 关 键 词： | 矩量法 渐近波形估计 三维电磁散射 雷达散射截面 |
| 文章编号： | 0372-2112(2002)06-0794-03 |
The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scatterin |
| |
| SUN Yu-fa ,XU Shan-jia.The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scatterin[J].Acta Electronica Sinica,2002,30(6):794-796. |
| |
| Authors: | SUN Yu-fa XU Shan-jia |
| |
| Affiliation: | 1. Dept.of electronic engineering and information science,University of Science and Technology of China,Hefei,Anhui 230027,China;2. Dept.of electronic engineering and information science,Anhui University,Hefei,Anhui 230039,China |
| |
| Abstract: | The asymptotic waveform evaluation (AWE) technique is applied to the method of moments for computing the radar cross section (RCS) of three-dimensional perfect electric conductor over a frequency band and the monostatic RCS pattern.The method of moments is used to solve the electric field integral equation,and the surface electric current density at a given frequency and incident angle can be determined.Using the AWE technique,the surface current on the perfect electric conductor can be obtained at any frequency within a frequency range and any incident angle within an angular range,respectively,which is used to compute the wide-band RCS and the monostatic RCS pattern.The numerical results are in good agreement with the results achieved by the method of moments at each frequency or any incident angle,while the computational efficiency is considerably improved. |
| |
| Keywords: | method of moments asymptotic waveform evaluation three-dimensional electromagnetic scattering radar cross section |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
|
点击此处可从《电子学报》下载全文 |
