| FMM用于快速计算电大腔体的RCS |
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| 引用本文： | 罗威,高正平,赵伯琳. FMM用于快速计算电大腔体的RCS[J]. 电波科学学报, 2006, 21(6): 848-852,858 |
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| 作者姓名： | 罗威 高正平 赵伯琳 |
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| 作者单位： | 电子科技大学微电子与固体电子学院,成都,610054;电子科技大学微电子与固体电子学院,成都,610054;电子科技大学微电子与固体电子学院,成都,610054 |
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| 摘 要： | 利用迭代物理光学法(IPO)计算一般电大尺寸腔体的电磁散射特性,在迭代过程中用快速多极子方法(FMM)加速计算.在雅可比最小残差法(JMRES)的积分运算中引入FMM并与共扼梯度法(CG)的计算效率进行了比较.采用结构化分组,利用转移因子的平移不变性对计算和存储进行了优化.计算结果表明这些加速方法是有效的并能极大地提高计算效率.
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| 关 键 词： | 迭代物理光学法 腔体 快速多极子 雅可比最小残差法 |
| 文章编号： | 1005-0388（2006）06-0848-06 |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2005-06-28 |
Fast calculation of RCS of electrically large cavities using FMM |
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| LUO Wei,GAO Zhen-ping,ZHAO Bo-lin. Fast calculation of RCS of electrically large cavities using FMM[J]. Chinese Journal of Radio Science, 2006, 21(6): 848-852,858 |
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| Authors: | LUO Wei GAO Zhen-ping ZHAO Bo-lin |
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| Affiliation: | The college of Micro-Electronics and Solid state Electronics, University of Electronic Science and technology, Chengdu Sichuan 610054, China |
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| Abstract: | The IPO method is applied to solve scattering of three-dimensional cavity. In the iterative process of IPO, the fast multipole method (FMM) is employed to accelerate computation. FMM is introduced to the integral operation of Jacobi Minimal Residual(JMRES) and the efficiency of JMRES+FMM, and the conjugate gradient (CG) method is compared here.!To optimize calculation and storage, the cavity is grouped in a form of structured and the invariance of translation of translator is employed. The numerical results presented to show the method is effective and can improve computational efficiency greatly. |
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| Keywords: | iterative physical optics cavity fast multipole method Jacobi minimal residual method |
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