| 基于FIP WA的RCS快速计算 |
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| 引用本文： | 卢雁,童创明,邓发升.基于FIP WA的RCS快速计算[J].上海航天,2008,25(5). |
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| 作者姓名： | 卢雁 童创明 邓发升 |
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| 作者单位： | 空军工程大学导弹学院,陕西,三原,713800 |
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| 摘 要： | 为改善基于矩量法(MOM)快速多极子(FMM)的稳定性,介绍了快速非均匀平面波算法(FIPWA).根据入射波及电场积分方程(EFIE),采用修正最陡下降路径(MSDP)进行数值积分和内插外推转换,建立了二雏FIPWA模型.该法基于格林函数谱域积分,其转移因子不含特殊函数而仅有初等函数,便于数值实现和稳定性控制,其多层形式复杂度与多层快速多极子(MLFMA)相当.算例表明:该算法与MOM吻合较好,且大幅节省计算时间及计算机内存.
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| 关 键 词： | 矩量法 快速多极子 多层快速多极子 快速非均匀平面波算法 修正最陡下降路径 |
Fast RCS Computation Based on FIP WA |
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| LU Yan,TONG Chuang-ming,DENG Fa-sheng.Fast RCS Computation Based on FIP WA[J].Aerospace Shanghai,2008,25(5). |
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| Authors: | LU Yan TONG Chuang-ming DENG Fa-sheng |
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| Institution: | LU Yan,TONG Chuang-ming,DENG Fa-sheng(The Missile Institute of Air Force Engineering University,Sanyuan Shaanxi 713800,China) |
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| Abstract: | The fast inhomogeneous plane wave algorithm(FIP WA) was introduced to improve the stability of the fast multipole method(FMM) based on the method of moments(MOM) in this paper.The 2-D FIPWA model was established using the modified descent path(MSDP) for numerical integration and transfer of interpolation and extrapolation according to incident wave and electric field integration equation.The algorithm was based on the plane wave expansion of the Green's function,and the diagonal translator had no special fu... |
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| Keywords: | Method of moments Fast multipole method Multilevel fast multipole algorithm Fast inhomogeneous plane wave algorithm Modified descent path |
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