| 极化信息在水下地形SAR探测中的应用 |
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| 引用本文： | 毕晓蕾,孟俊敏,杨俊钢,刘全桢.极化信息在水下地形SAR探测中的应用[J].遥感学报,2013,17(1):34-45. |
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| 作者姓名： | 毕晓蕾 孟俊敏 杨俊钢 刘全桢 |
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| 作者单位： | 化学品安全控制国家重点实验室,山东 青岛 266071;中国石油化工股份有限公司 青岛安全工程研究院,山东 青岛 266071;国家海洋局第一海洋研究所,山东 青岛 266061;国家海洋局第一海洋研究所,山东 青岛 266061;化学品安全控制国家重点实验室,山东 青岛 266071;中国石油化工股份有限公司 青岛安全工程研究院,山东 青岛 266071 |
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| 基金项目： | 国家自然科学基金(编号:60672159,60890075);国家海洋局青年海洋科学基金(编号:2009421) |
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| 摘 要： | 现有的水下地形SAR(Synthetic Aperture Radar)探测模型尚未综合应用SAR的极化信息。本文基于Valenzuela的雷达散射截面表达式与袁业立提出的海波高频谱表达式,并结合全极化SAR相干斑抑制的极化白化滤波法,将极化信息有效地运用到水下地形SAR探测中去。最后,以中国台湾浅滩为例,分别利用Radarsat-2单一极化和全极化影像开展水下地形SAR探测研究,探测结果表明充分利用全极化信息的探测精度明显优于单一极化信息的探测精度,利用极化信息可以有效地提高水下地形SAR探测精度。
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| 关 键 词： | 极化 水下地形 SAR(Synthetic Aperture Radar) 中国台湾浅滩 |
| 收稿时间： | 2010/6/18 0:00:00 |
| 修稿时间： | 2012/7/23 0:00:00 |
Application of SAR polarization information for detection of underwater topography |
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| BI Xiaolei,MENG Junmin,YANG Jungang and LIU Quanzhen.Application of SAR polarization information for detection of underwater topography[J].Journal of Remote Sensing,2013,17(1):34-45. |
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| Authors: | BI Xiaolei MENG Junmin YANG Jungang and LIU Quanzhen |
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| Institution: | State Key Laboratory of Safety and Controlfor Chemical, Qingdao 266071, China;SINOPEC Safety Engineering Institute, Qingdao 266071, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;State Key Laboratory of Safety and Controlfor Chemical, Qingdao 266071, China;SINOPEC Safety Engineering Institute, Qingdao 266071, China |
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| Abstract: | The existing underwater topography SAR detection models did not consider polarization information of SAR. In this paper, the SAR polarization information is used for underwater topography detection, which is based on radar cross section (RCS) expression from Valenzuela, high frequency spectra expression of ocean waves and Polarization Whitening Filter (PWF). Taiwan Shoal of China is taken as an example and its underwater topography is detected using single-polarization and full-polarization image of Radarsat-2. The results show that detection accuracy of full-polarization is better than that of single-polarization and illustrate that polarization information can effectively improve the accuracy of detection. |
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| Keywords: | polarization underwater topography SAR Taiwan Shoal of China |
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