Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique

TONG Chuang-ming; HONG Wei

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Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique

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- Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique
- Acta Electronica Sinica Vol. 29, Issue 9, Pages: 1198-1201(2001)
- 作者机构：
  
  东南大学无线电工程系毫米波国家重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： O441、TN011
- Published：2001
- 稿件说明：
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TONG Chuang-ming, HONG Wei. Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique[J]. Acta Electronica Sinica, 2001, 29(9): 1198-1201.
DOI：

TONG Chuang-ming, HONG Wei. Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique[J]. Acta Electronica Sinica, 2001, 29(9): 1198-1201. DOI：

摘要

本文基于渐近波形估计(AWE)技术和矩量法(MOM)快速预测任意形状导电柱体(PEC)的单站RCS方向图.首先采用矩量法求解导体柱的电场积分方程

得到导体柱在某一给定方向入射波照射下的表面电流的低阶矩量

然后利用AWE技术求出在任意方向入射波照射下用有理分式函数表示的表面电流

进而计算出RCS方向图.计算结果表明AWE完全能逼近MOM精确计算的曲线

同时在计算速度上可加快几十倍.

Abstract

The method of moments (MOM) in conjunction with the asymptotic waveform evaluation (AWE) technique is applied to predict the mono-static radar cross section (RCS) pattern of an arbitrarily shaped two-dimensional (2-D) perfect electric conductor (PEC) body.The electric field integral equation (EFIE) of a 2-D PEC body irradiated at a given direction by radar electromagnetic (EM) wave is solved using MOM to obtain the low order moments of the surface current on the PEC body.In the AWE technique

the surface current is obtained at any angle within the angular range expressed as a rational function

which is in turn used to calculate RCS of the 2-D PEC body.It was observed that AWE could result in considerable CPU time saving.

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