| 分形粗糙面上方目标电磁散射特性的研究 |
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| 引用本文： | 高火涛,徐鹏根.分形粗糙面上方目标电磁散射特性的研究[J].电波科学学报,1998,13(2):157-161,172. |
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| 作者姓名： | 高火涛 徐鹏根 |
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| 作者单位： | 武汉大学电子信息学院无线电物理学系!武汉，430072，武汉大学电子信息学院无线电物理学系!武汉，430072，武汉大学电子信息学院无线电物理学系!武汉，430072 |
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| 摘 要： | 利用分形函数来模拟海地粗糙表面，在考虑到粗糙面的粗糙度，入射波极化方式以及粗糙面的动态和静态等因素对电磁散射特性影响的情况下，运用克希霍夫近拟条件，对粗糙面上方平板目标电磁散射的物理机制进行了分析和研究。理论分析和数值结果表明，本文所述方法物理图象清晰，是一种有效分析实际粗糙面与目标相互作用的方法。
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| 关 键 词： | 分形粗糙表面 分数维 克希霍夫近似解 电磁散射 |
Electromagnetic Scattering from a Target over the Fractal Rough Surface |
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| Gao Huotao,Xu Penggen,Wu Zhengxian.Electromagnetic Scattering from a Target over the Fractal Rough Surface[J].Chinese Journal of Radio Science,1998,13(2):157-161,172. |
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| Authors: | Gao Huotao Xu Penggen Wu Zhengxian |
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| Abstract: | In this paper, the analysis of the electromagnetic scattering from a plate over the fractal sea/ground rough surface is made. The surface is medeled by use of a fractal function. The interaction between the target and the rough surface is represented to be the double bounce by using the Kirchhoff approximation. And some factors, such as the roughness, incident angle, polarization and rough surface varying with time et al, are investigated which influence on composite scattering characters between the target and the rough surface. The numerical results indicate the method is effective to solve the problem of the composite scattering between the target and the sea/ground rough surface. |
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| Keywords: | Fractal rough surface Fractal dimension Double bounce scattering The Kirchhoff approximation |
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