| 表面具有分形结构金属劈边缘绕射系数的提取 |
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| 引用本文： | 葛德彪 朱之伟. 表面具有分形结构金属劈边缘绕射系数的提取[J]. 电子学报, 1996, 24(9): 10-13 |
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| 作者姓名： | 葛德彪 朱之伟 |
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| 作者单位： | 西安电子科技大学 |
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| 摘 要： | 本文提出了一种计算数值绕射系数有有效方法，并将之用于提取表面具有分形结构金属劈的绕射系统，利用时域有限差分法提供的散射场，根据几何绕射理论建立含有绕射系数未知量的方程组，通过联立方程组的求解，得到散射体边缘的数值绕射系数。具体计算例子表明，该算法是有效的。
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| 关 键 词： | FDTD法 GTD 分形结构 数值绕射系数 散射场 |
Derivation of Numerical Diffraction Coefficient of the Wedge Characterized by Fractal Surfaces |
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| Ge Debiao,Zhu Zhiwei,Zhou Qizhong,Zhou Yilin. Derivation of Numerical Diffraction Coefficient of the Wedge Characterized by Fractal Surfaces[J]. Acta Electronica Sinica, 1996, 24(9): 10-13 |
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| Authors: | Ge Debiao Zhu Zhiwei Zhou Qizhong Zhou Yilin |
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| Abstract: | The numerical method for derivation of diffraction coefficients of wedge characterized by fractal surfaces is described.We use the Finite-difference Time-domain (FDTD) method to compute the scattered field of an object possessing several scattering centers.The numerical diffraction coefficient of the scattering center under investigation is then obtained by solving simultaneous equations established via GTD consideration. The examples show the feasibility of the present method. |
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| Keywords: | FDTD method GTD Fractal Diffraction coefficient |
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