The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scattering

SUN Yu-fa; XU Shan-jia

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The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scattering

更新时间：2025-07-16

- The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scattering
- Acta Electronica Sinica Vol. 30, Issue 6, Pages: 794-796(2002)
- 作者机构：
  
  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
  3. 中国科学技术大学电子工程与信息科学系安徽合肥,230027
  4. 安徽大学电子工程与信息科学系安徽合肥,230039
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN011
- Published：2002
- 稿件说明：
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SUN Yu-fa, XU Shan-jia. The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scattering[J]. Acta Electronica Sinica, 2002, 30(6): 794-796.
DOI：

SUN Yu-fa, XU Shan-jia. The Application of Asymptotic Waveform Evaluation Technique in Fast Analysis of the Three-Dimensional Electromagnetic Scattering[J]. Acta Electronica Sinica, 2002, 30(6): 794-796. DOI：

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.

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.

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