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遥感技术与应用  2006, Vol. 21 Issue (1): 11-17    DOI: 10.11873/j.issn.1004-0323.2006.1.11
研究与应用     
干涉合成孔径雷达海浪遥感研究
张 彪1, 2, 何宜军2
(1. 中国科学院研究生院, 北京 100039; 2. 中国科学院海洋研究所, 山东 青岛 266071)
The Study on Remote Sensing of Ocean Wave by Interferometric Synthetic Aperture Radar
ZHANG Biao 1, 2, HE Yi-jun2
(1. Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
2. Institution of Oceanology Chinese Academy of Sciences, Qingdao 266071, China)
 全文: PDF 
摘要:

海浪是重要的海洋环境参数, 它对港口建设、海上航行、油气田开发等具有重要的意义。合成孔径雷达(Syn thet ic Apertu re Radar, SAR ) 是目前大范围测量海浪的主要工具, 用它来估计海浪主波系统的波长和传播方向比较好, 但要定量的提供海浪的振幅以及SAR 图像强度与实际海面的关系是相当困难的, 而且由SAR 图像获取海浪方向谱也比较复杂。沿航迹干涉合成孔径雷达(Along-Track Interferometric Synthet ic Aperture Radar,ATI-SAR ) 是在平台飞行方向上安置两根天线的双天线合成孔径雷达。相对于合成孔径雷达, 真实孔径雷达调制传递函数对沿航迹干涉合成孔径雷达相位图像的影响很小, 因此沿航迹干涉合成孔径雷达更适合测量海浪。详细介绍了沿航迹干涉合成孔径雷达海浪遥感的成像机制, 为进一步反演海浪方向谱奠定了基础, 最后针对目前研究存在的问题以及今后有待研究的方向进行了探讨。

关键词: 干涉合成孔径雷达海浪遥感成像机制 海浪方向谱    
Abstract:

Ocean wave is an important ocean environment parameter. It has significant meaning for harbor
construction, navigation and exploitation of oilfield. Synthetic Aperture Radar (SAR ) is a primary
instrument to measure ocean wave in large-scale area. SAR estimates wavelength and direction of
propagation quite well, But it is very difficult to provide quantificationally amplitude of ocean wave as well
as relation between SAR image intensity and ocean surface. Besides, it is complex to obtain ocean wave
spectrum from SAR image spectrum. Along-Track Interferometric Synthetic Aperture Radar (ATI-SAR )
is an act ive coheren t imaging system , w hich has two an tennas separated along the platform flight
direction. The phrase image of ATI-SAR less depend on real aperture radar modulat ion transfer function
than synthetic aperture radar. Therefore, ATI-SAR is more suitable to measure ocean wave. This paper
introduces the imaging mechanism of ocean wave by Along-Track Interferometric Synthetic Aperture
Radar, It establish firm foundation to inverse ocean wave directional spectrum further. Finally, we discuss
some issues in present study and research orientation in the future.

Key words: Interferometric synthetic aperture radar    Remote sensing of ocean wave    Imaging mechanism    Ocean wave directional spectrum
收稿日期: 2005-05-17 出版日期: 2011-09-27
:  TN 958  
基金资助:

国家自然科学基金项目“干涉雷达海洋定量遥感理论和数值模拟研究”(编号:N SFC40276050) 资助。

作者简介: 张彪(1979- ) , 男, 博士研究生, 现从事海面气温反演和干涉雷达海浪海流遥感研究。
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引用本文:

张 彪, 何宜军. 干涉合成孔径雷达海浪遥感研究[J]. 遥感技术与应用, 2006, 21(1): 11-17.

ZHANG Biao, HE Yi-jun. The Study on Remote Sensing of Ocean Wave by Interferometric Synthetic Aperture Radar. Remote Sensing Technology and Application, 2006, 21(1): 11-17.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2006.1.11        http://www.rsta.ac.cn/CN/Y2006/V21/I1/11

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