| Modified Two-Scale Model for Electromagnetic Scattering from the Non-Gaussian Oceanic Surface |
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| 引用本文： | 王运华 郭立新 吴振森. Modified Two-Scale Model for Electromagnetic Scattering from the Non-Gaussian Oceanic Surface[J]. 中国物理快报, 2005, 22(11): 2808-2811 |
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| 作者姓名： | 王运华 郭立新 吴振森 |
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| 作者单位： | School of Science, Xidian University, Xi＇an 710071 |
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| 基金项目： | Supported by the Research Fund for the Doctoral Program of Higher Education under Grant No 20030701006, the National Defense Foundation of China. |
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| 摘 要： | Based on the skewness of sea waves, a modified two-scale model is developed for the non-Gaussian sea surface scattering. In this new model, a complementary term is added to the first-order scattering coefficient of the classical small perturbation method （SPM）, the additional part is proportional to the surface bispectrum and it is the critical part in explaining the scattering difference between upwind and downwind observations. Meanwhile, the effects of the shadowing function of the anisotropic surface, the curvature of the surface are also taken into account. The numerical results show the theoretical estimates obtained are consistent with the experimental result, and the influence of the wind speed, the trend and the incident frequency on the backscattering coefficients from the non-Gaussian oceanic surface is discussed in detail.
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| 关 键 词： | 电磁散射 高斯表面散射 无序法 表面光谱 散射系数 |
| 收稿时间： | 2005-08-02 |
| 修稿时间： | 2005-08-02 |
Modified Two-Scale Model for Electromagnetic Scattering from the Non-Gaussian Oceanic Surface |
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| WANG Yun-Hua, GUO Li-Xin, WU Zhen-Sen. Modified Two-Scale Model for Electromagnetic Scattering from the Non-Gaussian Oceanic Surface[J]. Chinese Physics Letters, 2005, 22(11): 2808-2811 |
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| Authors: | WANG Yun-Hua GUO Li-Xin WU Zhen-Sen |
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