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海洋粗糙面全极化电磁散射特性研究

王童 童创明 李西敏 姬伟杰

王童, 童创明, 李西敏, 姬伟杰. 海洋粗糙面全极化电磁散射特性研究[J]. 电子与信息学报, 2018, 40(6): 1412-1418. doi: 10.11999/JEIT170924
引用本文: 王童, 童创明, 李西敏, 姬伟杰. 海洋粗糙面全极化电磁散射特性研究[J]. 电子与信息学报, 2018, 40(6): 1412-1418. doi: 10.11999/JEIT170924
WANG Tong, TONG Chuangming, LI Ximin, JI Weijie. Research on the Full Polarimetric Electromagnetic Scattering Characteristics of Ocean Rough Surface[J]. Journal of Electronics and Information Technology, 2018, 40(6): 1412-1418. doi: 10.11999/JEIT170924
Citation: WANG Tong, TONG Chuangming, LI Ximin, JI Weijie. Research on the Full Polarimetric Electromagnetic Scattering Characteristics of Ocean Rough Surface[J]. Journal of Electronics and Information Technology, 2018, 40(6): 1412-1418. doi: 10.11999/JEIT170924

海洋粗糙面全极化电磁散射特性研究

doi: 10.11999/JEIT170924
基金项目: 

国家自然科学基金(61372033)

Research on the Full Polarimetric Electromagnetic Scattering Characteristics of Ocean Rough Surface

Funds: 

The National Natural Science Foundation of China (61372033)

  • 摘要: 针对基于几何光学-微扰法(GO-SPM)的传统双尺度模型对截断波数敏感的问题,该文建立了一种基于几何光学-小斜率近似(GO-SSA)的改进双尺度模型。该模型将小尺度部分的微扰法替换为一阶小斜率近似,并改进镜向分量的几何光学解。仿真表明该方法在获取传统双尺度精度的同时,不需要考虑截断波数的选取问题。针对Elfouhaily海浪谱模型的特点,简化GO-SSA积分形式。最后采用GO-SSA对以Elfouhaily海浪谱建模的海表面的单双站极化散射特性进行了仿真分析。发现双站极化散射中,粗糙表面的斜率调制导致交叉极化出现了异于传统模型的分布。同时在全空域的双站极化散射仿真中,发现所有的极化方式在方位向内均存在极小值。该极小值的大小与环境参数密切相关,在环境参数反演方面具有应用潜力。
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    出版历程
    • 收稿日期:  2017-09-29
    • 修回日期:  2018-01-16
    • 刊出日期:  2018-06-19

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