| Underwater topography detection of Shuangzi Reefs with SAR images acquired in different time |
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| 作者姓名： | YANG Jungang ZHANG Jie MENG Junmin |
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| 作者单位： | YANG Jungang1，2，3*，ZHANG Jie3，4，MENG Junmin31. Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China2. Graduate School，Chinese Academy of Sciences，Beijing 100039，China3. First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China4. Key Laboratory of Marine Science and Numerical Modeling of State Oceanic Administration，First Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 1 IntroductionSynthetic aperture radar (SAR) is one of theadvanced microwave remote sensors of environmentand resource. It can observe targets in all weathersand all day and night in a multi-band, multi-polari-zation and multi-look angle mode. SAR has bee…
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| 关 键 词： | 南沙群岛 双子礁 海底地形 SAR雷达图片 |
| 收稿时间： | 2006-04-17 |
| 修稿时间： | 2006-09-03 |
Underwater topography detection of Shuangzi Reefs with SAR images acquired in different time |
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| YANG Jungang,ZHANG Jie,MENG Junmin.Underwater topography detection of Shuangzi Reefs with SAR images acquired in different time[J].Acta Oceanologica Sinica,2007,26(1):48-54. |
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| Authors: | YANG Jungang ZHANG Jie and MENG Junmin |
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| Institution: | Korean Ocean Science and Engineering Corporation, Seoul 152-050, Korea;Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Graduate School, Chinese Academy of Sciences, Beijing 100039, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling of State Oceanic Administration, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | Imaging mechanism of underwater topography by SAR and a underwater topography SAR detection model built on the theory of underwater topography detection with SAR image presented by Yuan Yeli are used to detect the underwater topography of Shuangzi Reefs in the Nansha Islands with three scenes of SAR images acquired in different time. Detection results of three SAR images are compared with the chart topography and the detection errors are analyzed. Underwater topography detection experiments of Shuangzi Reefs show that the detection model is practicable. The detection results indicate that SAR images acquired in different time also can be used to detect the underwater topography, and the detection results are affected by the ocean conditions in the SAR acquiring time. |
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| Keywords: | Shuangzi Reefs underwater topography SAR image topography detection |
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