| 渐近波形估计技术应用于导体柱RCS方向图的快速获取 |
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| 引用本文： | 童创明,洪伟.渐近波形估计技术应用于导体柱RCS方向图的快速获取[J].电子学报,2001,29(9):1198-1201. |
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| 作者姓名： | 童创明 洪伟 |
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| 作者单位： | 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 |
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| 基金项目： | 国家杰出青年基金的资助项目(No.69625102) |
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| 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.
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| 关 键 词： | 矩量法 渐近波形估计技术 雷达散射截面 二维导体柱 |
| 文章编号： | 0372-2112(2001)09-1198-04 |
| 收稿时间： | 2000-04-17 |
Fast Calculation of Wide Angle Mono-Static RCS Pattern of Conducting Cylinders Based on Asymptotic Wave Evaluation Technique |
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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. |
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| Authors: | TONG Chuang-ming HONG Wei |
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| Affiliation: | State Key Lab.of Millimeter Waves,Dept.of Radio Engineering,Southeast University,Nanjing,Jiangsu 210096,China |
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| Abstract: | The method of moments (MOM) in conjunction with the asymptotic waveform evaluati on (AWE) technique is applied to predict the mono static radar cross section (R CS) 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 u sing 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 R CS of the 2-D PEC body.It was observed that AWE could result in considerable CPU time saving. |
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| Keywords: | MOM AWE technique RCS 2-D PEC |
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