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	Calibration of compact polarimetric sar images using distributed targets and one corner reflector
	Tan, Hong1,2,3; Hong, Jun1,2,4
刊名	Ieee transactions on geoscience and remote sensing
	2016-08-01
卷号	54期号:8页码:4433-4444
关键词	Calibration Compact polarimetry (cp) Numerical methods Synthetic aperture radar (sar)
ISSN号	0196-2892
DOI	10.1109/tgrs.2016.2541666
通讯作者	Tan, hong(tanhong05@mails.ucas.ac.cn)
英文摘要	Compact polarimetric (cp) synthetic aperture radar (sar) systems are attracting increasing interest as they possess the ability to construct quad-polarimetric information with advantages of simpler system, lower data rate, and wider swath, compared to a fully polarimetric (fp) system. in order to get undistorted polarimetric information, calibration of cp measurements has to be performed. freeman and chen both proposed methods for cp sar calibration using merely calibrators, which require at least three calibrators at a range line and would require many more calibrators when monitoring the change of the system across the swath is necessary. it has been proved that fp sar calibration methods exploring scattering characteristics of natural distributed targets (dts) can reduce the requirement of the number of deployed calibrators. however, it is much more complicated in the case of cp sar calibration, as only two channels of cp measurements are available. this paper proposes a numerical cp calibration method using natural dts and only one corner reflector (cr) for a reciprocal cp sar system. the validity of the method for three typical cp modes is confirmed by simulations with advanced land observing satellite phased array l-band sar data. through sensitivity analysis, a dihedral at 0 degrees is selected as the best cr for the calibration algorithm.
WOS关键词	SYMMETRY PROPERTIES ; LOW-FREQUENCY ; ALGORITHM
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000381434600006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376315
专题	中国科学院大学
通讯作者	Tan, Hong
作者单位	1.Chinese Acad Sci, Inst Elect, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100139, Peoples R China 3.Chinese Acad Sci, Key Lab Technol Geospatial Informat Proc & Applic, Beijing 100190, Peoples R China 4.Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Tan, Hong,Hong, Jun. Calibration of compact polarimetric sar images using distributed targets and one corner reflector[J]. Ieee transactions on geoscience and remote sensing,2016,54(8):4433-4444.
APA	Tan, Hong,&Hong, Jun.(2016).Calibration of compact polarimetric sar images using distributed targets and one corner reflector.Ieee transactions on geoscience and remote sensing,54(8),4433-4444.
MLA	Tan, Hong,et al."Calibration of compact polarimetric sar images using distributed targets and one corner reflector".Ieee transactions on geoscience and remote sensing 54.8(2016):4433-4444.

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