| 分形粗糙面双站散射的快速前后向迭代法数值模拟 |
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| 引用本文： | 李中新,金亚秋.分形粗糙面双站散射的快速前后向迭代法数值模拟[J].物理学报,2001,50(5):797-804. |
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| 作者姓名： | 李中新 金亚秋 |
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| 作者单位： | 复旦大学波散射与遥感中心,上海200433 |
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| 基金项目： | 国家自然科学基金(批准号：49831060)资助的课题. |
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| 摘 要： | 为模拟复杂分形表面特别是在低掠角入射条件下的双站散射,发展了一种结合前后向迭代方法(FBM)与谱加速算法(SAA)快速求解散射场的Monte Carlo数值方法,计算了在TE,TM锥形波入射在一维分形导体粗糙面的双站散射以及有规则异物存在时的双站散射,讨论了分形粗糙面双站散射的角度性分布与其分数维的关系.
关键词：
GFBM/SAA
分形粗糙面
双站散射
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| 关 键 词： | GFBM/SAA 分形粗糙面 双站散射 |
| 收稿时间： | 2000-11-20 |
| 修稿时间： | 2000年11月20 |
NUMERICAL SIMULATION OF
BISTATIC SCATTERING FROM FRACTAL ROUGH SURFACE BY FAST FORWARD-BACKWARD METHOD |
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| LI Zhong-xin,JIN Ya-qiu.NUMERICAL SIMULATION OF
BISTATIC SCATTERING FROM FRACTAL ROUGH SURFACE BY FAST FORWARD-BACKWARD METHOD[J].Acta Physica Sinica,2001,50(5):797-804. |
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| Authors: | LI Zhong-xin JIN Ya-qiu |
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| Abstract: | In order to numerically simulate bistatic scattering from fractal rough surface at low grazing angle incidence, a hybrid approach of the forward-backward method (FBM) with spectral-accelerated algorithm (SAA) is developed to solve the magnetic field integral equation. Numerical bistatic scattering from one-dimensional perfect conducting fractal rough surface realized by the Monte Carlo method with and without the presence of a regular object is accomplished, Linear relationship between the envelope slope of bistatic scattering pattern and the fractal dimension is discussed. |
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| Keywords: | FBM/SAA fractal rough surface bistatic scattering |
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