| 基于AWE技术的宽角度与宽频带RCS的快速计算 |
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| 引用本文： | 李翠花,李南南.基于AWE技术的宽角度与宽频带RCS的快速计算[J].电子技术,2009,36(8):46-47. |
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| 作者姓名： | 李翠花 李南南 |
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| 作者单位： | 1. 合肥学院电子信息与电气工程系;安徽大学电子工程与信息科学系
2. 安徽大学电子工程与信息科学系 |
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| 基金项目： | 合肥学院教研项目2008jyyb36 |
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| 摘 要： | 目标的雷达散射截面（RCS）与照射角度和照射频率都有关系，采用渐近波形估计（AWE）技术在角度域和频率域上预测任意形状的理想导体的单站RCS，通过Pade逼近求出给定角度域内任意角度及给定频带内任意频点的表面电流密度分布，进而计算出给定目标的散射场及雷达散射截面。对数值结果与矩量法逐点求解的结果进行了比较，两者吻合较好，而且提高了计算效率。
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| 关 键 词： | 矩量法 渐近波形估计 宽角度宽频带 雷达散射截面 |
Fast Computation of Wide-angle and Wide-band RCS Based on AWE Technique |
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| Li Cuihua,Li Nannan.Fast Computation of Wide-angle and Wide-band RCS Based on AWE Technique[J].Electronic Technology,2009,36(8):46-47. |
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| Authors: | Li Cuihua Li Nannan |
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| Affiliation: | 1.Department of Electronic Information and Electrical Engineering;Hefei University 2.Department of Electronic Engineering and Information Science;Anhui University |
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| Abstract: | The radar cross section （RCS） of a target is related to both illumination frequency and observation angle. The asymptotic waveform evaluation （AWE） technique is applied to predict the mono-static RCS of an arbitrarily shaped two-dimensional cylinder in both frequency and angular domains. In the AWE technique, the surface current on the perfect electric conductor is expanded in a rational function via the Pade approximation. Using the function, the current density distribution can be obtained at any angle and frequency within given angle and frequency range, which is used to compute the wide-angle and wide-band RCS. The numerical results are in good agreement with those obtained by the method of moments at each frequency. |
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| Keywords: | moment method asymptotic waveform evaluation （AWE） wide-angle and wide-band radar cross section（RCS） |
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