IOCAS-IR  > 海洋环流与波动重点实验室
Ocean wave spectra from a linear polarimetric SAR
He, YJ; Perrie, W; Xie, T; Zou, QP
2004-11-01
发表期刊IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
卷号42期号:11页码:2623-2631
文章类型Article
摘要Conventional horizontal or vertical polarization synthetic aperture radar (SAR) images seldom perform well in detecting azimuthally traveling ocean waves. However, theoretical analyses suggest that linear-polarimetric backscatter measurements may be more sensitive to these waves and, therefore, that a SAR with linear polarization is expected to give a better measurement of azimuthally traveling ocean waves. We derive the polarization-orientation modulation transform function and tilt modulation transform function of the linear-polarimetric SAR. Through numerical simulations based on these formulations, we examine the effects of radar and ocean wave parameters on linear-polarimetric SAR image spectra. We suggest a method to eliminate the 180degrees directional ambiguity in determining the true wave direction. Our numerical simulations show that the correlation between ocean wave spectra and SAR image spectra is improved for larger radar incidence angles and longer ocean waves. For real aperture radar, we suggest that the polarimetric modulation allows measurement of waves traveling in the azimuth direction. Moreover, as suggested by Schuler et al., this may be the dominant modulation for many SAR aircraft measurements, particularly for moderate sea states.
关键词Directional Ambiguity Linear Polarimetric Synthetic Aperture Radar (Sar) Ocean Wave Spectra Polarization Orientation Modulation Transform Function Synthetic Aperture Radar (Sar)
DOI10.1109/TGRS.2004.836813
收录类别SCI
语种英语
WOS记录号WOS:000225171900026
引用统计
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/33016
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada
3.Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China
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GB/T 7714
He, YJ,Perrie, W,Xie, T,et al. Ocean wave spectra from a linear polarimetric SAR[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2004,42(11):2623-2631.
APA He, YJ,Perrie, W,Xie, T,&Zou, QP.(2004).Ocean wave spectra from a linear polarimetric SAR.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,42(11),2623-2631.
MLA He, YJ,et al."Ocean wave spectra from a linear polarimetric SAR".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 42.11(2004):2623-2631.
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