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| 应用梅利逼近分析目标宽带电磁散射特性 | |
| 引用本文： | 孙兵兵,陈明生,吴先良,黄志祥.应用梅利逼近分析目标宽带电磁散射特性[J].合肥工业大学学报(自然科学版),2009,32(3). |
| 作者姓名： | 孙兵兵 陈明生 吴先良 黄志祥 |
| 作者单位： | 1. 安徽大学,计算智能与信号处理教育部重点实验室,安徽,合肥,230039 2. 合肥师范学院,物理与电子工程系,安徽,合肥,230061 3. 安徽大学,计算智能与信号处理教育部重点实验室,安徽,合肥,230039;合肥师范学院,物理与电子工程系,安徽,合肥,230061 |
| 基金项目： | 国家自然科学基金，安徽省教育厅自然科学基金重点项目 |
| 摘 要： | 将最佳一致逼近理论引入到电磁散射宽带计算中,通过对给定频带内的切比雪夫节点和节点处目标表面电流的求解,获得了关于电流的最佳一致多项式逼近,并转化为有理逼近以提高计算精度.结合组合场积分方程,对任意形状三维导体目标的宽带电磁散射特性进行了分析,并与渐近波形估计进行了比较,结果表明:在不占用更多内存的前提下,所提方法大大提高了计算效率. |
| 关 键 词： | 矩量法 最佳一致有理逼近 渐近波形估计 宽带雷达散射截面 |
Application of the Maehly approximation to the wide band scattering analysis |
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| SUN Bing-bing,CHEN Ming-sheng,WU Xian-liang,HUANG Zhi-xiang.Application of the Maehly approximation to the wide band scattering analysis[J].Journal of Hefei University of Technology(Natural Science),2009,32(3). | |
| Authors: | SUN Bing-bing CHEN Ming-sheng WU Xian-liang HUANG Zhi-xiang |
| Institution: | 1.Key Lab of Intelligent Computing & Signal Processing of the Ministry of Education;Anhui University;Hefei 230039;China;2.Dept.of Physics and Electronic Engineering;Hefei Teachers College;Hefei 230061;China |
| Abstract: | The best uniform approximation theory is introduced to the scattering analysis over a wide frequency band.The frequency points corresponding to the Chebyshev nodes are found by transformation of coordinates,and the method of moments(MOM) is used to compute the electric currents at these points.Then the surface current is represented by the Chebyshev series,which can be as good as the best polynomial approximation.To improve the accuracy,the polynomial series is replaced by the Maehly series to obtain the be... |
| Keywords: | method of moments best uniform rational approximation asymptotic waveform evaluation wide band radar cross section |
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