AN ANALYSIS OF COHERENCE OPTIMIZATION METHODS IN COMPACT POLARIMETRIC SAR INTERFEROMETRY

被引：0
|
作者：
Liu, Meng [1 ,2 ]
Zhang, Hong [1 ]
Wang, Chao [1 ]
Zhang, Bo [1 ]
机构：
[1] Chinese Acad Sci, Ctr Earth Observat & Digital Earth, Beijing 100094, Peoples R China
[2] Grad Univ Chinese Acad Sci, Beijing 100086, Peoples R China
来源：
2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年
关键词：
coherence optimization; compact polarimetric; PolInSAR; compact PolInSAR;
D O I：
10.1109/IGARSS.2011.6050094
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The coherence optimization methods of compact polarimetric SAR interferometry (PolInSAR) are analyzed in this paper. Coherence optimization for compact PolInSAR can be performed directly in the two-dimensional observation space of the CP system without the reconstruction of the pseudo fully PolInSAR covariance matrix. The performance of different compact polarimetric modes for coherence optimization is evaluated both theoretically and experimentally and compared to the capabilities of a fully polarimetric (FP) system. It is observed that there is a significant loss in coherence of 5-10% when CP modes are available. But the trend of the coherence histograms for CP case is closed to the corresponding FP case. This study shows that the degree of coherence from a CP architecture carries enough information for PolInSAR applications.
引用
收藏
页码：3943 / 3946
页数：4
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