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遥感技术与应用  2007, Vol. 22 Issue (2): 177-182    DOI: 10.11873/j.issn.1004-0323.2007.2.177
研究与应用     
全极化合成孔径雷达海浪遥感方法
何宜军1,孟 雷1,2,李海艳1,2,张 彪1,2
(1.中国科学院海洋研究所,山东 青岛266071;2.中国科学院研究生院,北京100039)
Ocean Wave Measured by Fully Polarimetric Synthetic Aperture Radar
HE Yi-jun1, MENG Lei1,2, LI Hai-yan1,2, ZHANG Biao1,2
(1.Institute of oceanology,Chinese Academy of Sciences,Qingdao266071,China;
2.Graduate School of the Chinese Academy of Sciences,Beijing100039,China)
 全文: PDF 
摘要:

提出了一种利用全极化真实孔径雷达测量方位方向和距离方向海浪斜率的新方法,该方法不同于极化方向角估计海浪方位向斜率方法,利用两种线极化图像信息将有关弱极化项剔除(流体动力学调制),获得仅包含倾斜项和极化调制项的雷达成像公式。利用机载SAR取代真实孔径雷达进行海浪反演,获得了与浮标致的结果。另外,在速度聚束模式情况下,推导了双极化合成孔径雷达图像谱同海浪谱的非线性变换关系。

关键词: 极化合成孔径雷达海浪非线性变换    
Abstract:

A new method to measure ocean wave slope spectra using fully polarimetric Synthetic Aperture Radar (POLSAR) data was developed without the need for a complex hydrodynamic modulation transform function. There is no explicit use of a hydrodynamic modulation transfer function. The results estimated from NASA/JPL AIRSAR C-band polarimetric SAR data show that the ocean wavelength, wave direction and significant wave height are in agreement with buoy measurements. In the velocity bunching model, a nonlinear mapping relationship between dual-polarization SAR image spectra and ocean wave spectra is derived.

Key words: Polarization    Synthetic aperture radar    Ocean wave    Nonlinear mapping
收稿日期: 2006-12-04 出版日期: 2011-11-25
:  TN 958   
基金资助:

国家自然科学基金40276050和863项目2002AA633120的资助,所用雷达资料由NASA JPL提供,浮标资料为美国国家浮标中心提供。

作者简介: 何宜军(1963-),男,博士,研究员,博士生导师,主要从事海洋微波遥感基础和应用研究。
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引用本文:

何宜军,孟 雷,李海艳,张 彪. 全极化合成孔径雷达海浪遥感方法[J]. 遥感技术与应用, 2007, 22(2): 177-182.

HE Yi-jun, MENG Lei, LI Hai-yan, ZHANG Biao. Ocean Wave Measured by Fully Polarimetric Synthetic Aperture Radar. Remote Sensing Technology and Application, 2007, 22(2): 177-182.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2007.2.177        http://www.rsta.ac.cn/CN/Y2007/V22/I2/177

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