| 基于镜面散射的雷达探测浅海水下地形研究 |
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| 引用本文： | 王珂,洪峻,明峰,丁岩.基于镜面散射的雷达探测浅海水下地形研究[J].电波科学学报,2011(1):157-163. |
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| 作者姓名： | 王珂 洪峻 明峰 丁岩 |
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| 作者单位： | 中国科学院空间信息处理与应用系统技术重点实验室;中国科学院电子学研究所;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金重大项目资助(60890071) |
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| 摘 要： | 海面镜面散射建模及其应用方法是小入射角时雷达海洋遥感的关键问题.深入研究了基于格拉母一卡利尔(Gram-Charlier)分布的海面镜面散射建模方法,分析了其极化特性,将风速统一以海面上10 m高度为基准.通过与实测数据的比较,证明了其正确性和优越性.提出了采用Wu J方法估计海面均方斜率可改进其在中低风速时的性能,指...
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| 关 键 词： | 镜面散射 Gram-Charlier分布 雷达探测 浅海水下地形 |
Radar detecting shallow ocean under water bottom topography based on specular-point scattering |
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| WANG Ke, HONG Jun, MING Feng, DING Yan.Radar detecting shallow ocean under water bottom topography based on specular-point scattering[J].Chinese Journal of Radio Science,2011(1):157-163. |
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| Authors: | WANG Ke HONG Jun MING Feng DING Yan |
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| Affiliation: | WANG Ke1,2,3 HONG Jun1,2 MING Feng1,2 DING Yan1,3 (1.Key Laboratory of Spatial Information Processing and Application System Technology,Chinese Academy of Sciences,Beijing 100190,China,2.Institute of Electronics,3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The ocean surface specular-point scattering modeling and its application methods are important for ocean radar remote sensing at low incidence angles.In this study,an ocean surface specular-point scattering model based on the Gram-Charlier distribution is proposed,and analysis of its polarization characteristic is presented.The comparison results of our model and observations show that they agree well with each other in general,and Wu J′s ocean surface mean square slope model performs better in middle and low wind speeds.In addition,the ocean surface specular-point scattering model based on the Gram-Charlier distribution is applied to detection of shallow ocean bottom topography by imaging radar.The feasibility and advantage of this method are verified. |
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| Keywords: | specular-point scattering Gram-Charlier distribution radar detecting shallow ocean under water bottom topography |
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