| 海面电磁散射回波的分形特性 |
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| 引用本文： | 田铁红,周正.海面电磁散射回波的分形特性[J].电路与系统学报,2003,8(5):83-86. |
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| 作者姓名： | 田铁红 周正 |
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| 作者单位： | 北京邮电大学96#信箱,北京,100876 |
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| 摘 要： | 本文引入时变分形Weistrass—Mandelbrot函数描述海面的局部动态特征，采用Kirchhoff解近似分析电磁散射场的时域分形特性，导出了海面电磁散射系数的分形模型。理论分析和试验结果表明，海面的散射回波信号保留了海面的一些分形特征，散射系数属于分形函数，其盒维数与海面的分形维数近似相等。
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| 关 键 词： | 分形 散射 海面 |
| 文章编号： | 1007-0249(2003)05-0083-05 |
| 修稿时间： | 2002年9月4日 |
Fractal Characteristic of the Signal Scattered from the Sea-Surface |
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| TIAN Tie-hong,ZHOU Zheng.Fractal Characteristic of the Signal Scattered from the Sea-Surface[J].Journal of Circuits and Systems,2003,8(5):83-86. |
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| Authors: | TIAN Tie-hong ZHOU Zheng |
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| Affiliation: | TIAN Tie-hong1,ZHOU Zheng2 |
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| Abstract: | The time-variant fractal Weistrass-Mandelbrot function is adopted to describe the regional dynamic feature of sea-surface. The time-domain property of a scattering field is analyzed by applying the Kirchhoff method, and the fractal model of the scattering coefficient from the sea-surface is reduced. Theoretical analysis and experimental results prove that the sea-scattered signal retains some fractal characteristic of the sea-surface. The results show the scattering coefficient is fractal function and its box-counting fractal dimension equal to the one of the sea profile. |
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| Keywords: | Fractal Scattering Sea-surface |
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