Wind Speed Retrieval From Hybrid-Pol Compact Polarization Synthetic Aperture Radar Images

doi:10.1109/JOE.2017.2722225

	Wind Speed Retrieval From Hybrid-Pol Compact Polarization Synthetic Aperture Radar Images
	Li, Haiyan 1,2; Wu, Jin 1,3; Perrie, William 2; He, Yijun 4
刊名	IEEE JOURNAL OF OCEANIC ENGINEERING
	2018-07-01
卷号	43 期号:3 页码:713-724
关键词	Compact polarization (CP) synthetic aperture radar (SAR) cross polarization reconstruction algorithm wind speeds
ISSN号	0364-9059
DOI	10.1109/JOE.2017.2722225
通讯作者	Li, Haiyan(lihaiyan@ucas.ac.cn)
英文摘要	This paper presents an attempt to retrieve wind speed from hybrid-pol compact polarization (CP) synthetic aperture radar (SAR) data. Cross-polarization (cross-pol, denoted by HV or VH) facilitates wind speed retrieval and improves the accuracy of the results, especially with respect to high wind speeds. Although the cross-pol data cannot be obtained from CP SAR data directly, these data can be reconstructed from CP SAR data. However, the existing reconstruction algorithms cannot satisfy the quantitative wind-speed retrieval requirements for specifying the critical parameter, denoted "N" in reconstruction algorithms, either as a constant, or as a variable with limited range. Here, N is defined in terms of the ratio between cross- and co-polarization channels and the coherence coefficient between co-polarization (denoted by HH and VV) channels. Thus, we have improved the empirical reconstruction algorithm for the modified N based on a data set of more than 2000 RADASAT-2 (RS-2) quad-polarization images and collocated buoy observations. The algorithm improves the accuracy for the reconstruction of cross-pol data and, ultimately, gives improved wind speed retrievals from the hybrid-pol CP SAR data. With the new algorithm, results show that the wind speed retrievals from reconstructed cross-pol data can approximate the accuracy of VH observations collected by RS-2.
资助项目	National Natural Science Foundation of China[41306189] ; National Key Research and Development Program of China[2016YFC1402000] ; Special Fund for Strategic Pilot Technology Chinese Academy of Sciences[XDA11010104] ; Canada's Office of Energy Research and Development ; Canadian Space Agency
WOS关键词	C-BAND ; CROSS-POLARIZATION ; POLARIMETRIC SAR ; TARGET DETECTION ; OCEAN ; RECONSTRUCTION ; ALGORITHM ; ENVISAT ; MODES
WOS研究方向	Engineering ; Oceanography
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000438742000012
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Special Fund for Strategic Pilot Technology Chinese Academy of Sciences ; Canada's Office of Energy Research and Development ; Canadian Space Agency
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130015]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Haiyan
作者单位	1.Univ Chinese Acad Sci, Earth Sci Coll, Key Lab Computat Geodynam, Beijing 100049, Peoples R China 2.Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Haiyan,Wu, Jin,Perrie, William,et al. Wind Speed Retrieval From Hybrid-Pol Compact Polarization Synthetic Aperture Radar Images[J]. IEEE JOURNAL OF OCEANIC ENGINEERING,2018,43(3):713-724.
APA	Li, Haiyan,Wu, Jin,Perrie, William,&He, Yijun.(2018).Wind Speed Retrieval From Hybrid-Pol Compact Polarization Synthetic Aperture Radar Images.IEEE JOURNAL OF OCEANIC ENGINEERING,43(3),713-724.
MLA	Li, Haiyan,et al."Wind Speed Retrieval From Hybrid-Pol Compact Polarization Synthetic Aperture Radar Images".IEEE JOURNAL OF OCEANIC ENGINEERING 43.3(2018):713-724.