| 一种快速分析多导体宽带电磁散射的方法 |
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| 引用本文： | 杜燕,孙玉发,邵勇,蒋军.一种快速分析多导体宽带电磁散射的方法[J].无线电工程,2008,38(8). |
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| 作者姓名： | 杜燕 孙玉发 邵勇 蒋军 |
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| 作者单位： | 安徽大学,电子科学与技术学院,安徽,合肥,230039 |
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| 基金项目： | 国家自然科学基金，安徽省优秀人才计划项目 |
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| 摘 要： | 应用特征基函数法和渐近波形估计技术分析了二维多导体目标的电磁散射特性。特征基函数法对问题中的每个子域构造了一种包含散射问题不同域间的耦合效应的高级基函数,降低了生成的全局矩阵维度,从而可以对矩阵进行快速求解得到目标的表面电流,并结合渐近波形估计技术计算目标的宽带雷达散射截面。数值计算表明:计算结果与矩量法逐点计算结果相吻合,计算效率大大提高。
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| 关 键 词： | 矩量法 特征基函数法 渐近波形估计 雷达散射截面 |
A Fast Analysis Method of Wide-band Electromagnetic Scattering from Multi-objects |
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| DU Yan,SUN YU-fa,SHAO Yong,JIANG Jun.A Fast Analysis Method of Wide-band Electromagnetic Scattering from Multi-objects[J].Radio Engineering of China,2008,38(8). |
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| Authors: | DU Yan SUN YU-fa SHAO Yong JIANG Jun |
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| Abstract: | Characteristic basis function(CBF)method in conjunction with asymptotic waveform evaluation(AWE)technique is applied to analyze the scattering properties of two-dimensional multi-objects.CBF method includes the mutual coupling effects directly by using a new type of high level basis functions.Thereby the matrix dimension can be reduced dramatically,and the surface currents are calculated rapidly.Then wide-band radar cross section is obtained in conjunction with AWE technique.The numerical results presented in this paper are in good agreement with that achieved by the method of moments(MOM),and the proposed scheme exceeds MOM considerably in the computational efficiency. |
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| Keywords: | method of moments characteristic basis function method asymptotic waveform evaluation radar cross section |
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