| 一维粗糙表面电磁散射的研究 |
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| 引用本文： | 毛巍威,王正斌.一维粗糙表面电磁散射的研究[J].宜春学院学报,2006,28(2):23-25. |
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| 作者姓名： | 毛巍威 王正斌 |
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| 作者单位： | 南京邮电大学数理学院,江苏,南京,210003 |
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| 摘 要： | 本文利用数值方法研究了一维粗糙表面对电磁散射的影响。虽然应用矩量法研究粗糙表面的电磁散射可获得较为精确的数值结果,但对于一维表面也需几千个未知变量。当求解矩阵方程时,计算机对求解的问题有内存和速度的限制。为克服这些限制,本文利用最陡下降快速多极子(SDFMM)这一方法对一维随机粗糙表面的电磁散射问题进行了研究,并与矩量法计算进行了比较。所得结果表明,当未知数较多时SDFMM算法具有更快的计算速度,而需要的内存却较少,最后的计算结果符合很好。
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| 关 键 词： | 矩量法(MOM) SDFMM 电磁散射 不规则碎片形随机粗糙表面 |
| 文章编号： | 1671-380X（2006）02-0023-03 |
| 收稿时间： | 2005-12-31 |
| 修稿时间： | 2005年12月31 |
Study on the One- dimensional Rough Surface Electromagnetic Scattering |
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| MAO Wei-wei,WANG Zheng-bin.Study on the One- dimensional Rough Surface Electromagnetic Scattering[J].Journal of Yichun University,2006,28(2):23-25. |
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| Authors: | MAO Wei-wei WANG Zheng-bin |
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| Abstract: | This paper used the numerical method to study the influence of one-dimensional rough surface on the electromagnetic scattering.Useing moment method to study rough surface on the electromagnetic scattering may obtain the precise numerical result,but needs several thousand unknown variables regarding the one-dimensional surface.When solving matrix equation,it may be limited by the memory and the speed of the computer.In order to overcome these limits,this paper used the method of the Steepest Descent Fast Multipole Met(SDFMM)to research one-dimensional randomicity rough surface on the electromagnetic scattering,and compared with the moment method.The result indicated:when having many unknown variables SDFMM has the quicker calculating speed,but needs fewer memory.The final result tallies very well. |
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| Keywords: | Moment method(MOM) SDFMM Electromagnetic scattering Irregular fractal random rough surface |
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