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题名: An Extension of a Complete Model-Based Decomposition of Polarimetric SAR Data
作者: Zhu, Feiya; Yunhua Zhang(张云华); Li, Dong
作者部门: 微波遥感部
通讯作者: Zhu, FY ; Zhang, YH ; Li, D (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China. ; Zhu, FY (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
关键词: Helix angle (HA) variation ; model-based decomposition ; nonnegative eigenvalue decomposition (NNED) ; orientation angle (OA) variation ; polarimetric synthetic aperture radar (PolSAR)
刊名: IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
ISSN号: 1545-598X
出版日期: 2016
卷号: 13, 期号:2, 页码:287-291
收录类别: SCI ; EI
项目资助者: National Natural Science Foundation of China [41401406]
英文摘要: The model-based decomposition that originated from Freeman-Durden three-component decomposition (FDD) has been widely applied in polarimetric synthetic aperture radar (PolSAR) data processing for its clear physical interpretation and easy implementation. Numerous improvements have been proposed to settle the twomain drawbacks of FDD, i.e., the incomplete utilization of the polarimetric information in the coherency matrix and the negative scattering power problem. Recently, Cui et al. proposed a complete model-based three-component decomposition which successfully settled the two aforementioned drawbacks. However, the three scattering components' powers are not totally derived using scattering models, and the remaining coherency matrix (RCM) obtained by subtracting the volume scattering component from the coherency matrix is not consistent with the models of surface and double-bounce scattering components. As an extension of Cui's method, this letter is dedicated to develop a novel method to discriminate the surface and double-bounce scattering components both using scattering models. With the orientation angle (OA) variation and helix angle (HA) variation compensated for the RCM, the RCM is automatically consistent with the models of surface and double-scattering components. The OA variation and HA variation compensation for the RCMis done by unitary transformations of the eigenvectors of the RCM. The powers of surface and double-bounce scattering components are positive. The effectiveness of the proposedmethod is demonstrated by processing the real PolSAR data.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5666
Appears in Collections:微波遥感部_期刊论文

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