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Title: Positioning of Xi'an active ground fissures with SAR interferometry
Authors: Zhao, C
Zhang, Q
Ding, X 
Qu, W
Keywords: Adaptive filtering
Ground fissure
Pseudo-coherence map
SAR interferometry
Issue Date: 2009
Publisher: 武汉大学期刋社
Source: 武汉大学学报. 信息科学版 (Geomatics and information science of Wuhan University), 2009, v. 34, no. 7, p. 809-813 How to cite?
Journal: 武汉大学学报. 信息科学版 (Geomatics and information science of Wuhan University) 
Abstract: Xi'an ground fissure is a typical geo-hazard with nearly half century and even active up to date. Based on the theory of deformation decorrelation of the active ground fissures, we mainly investigates the positioning method of active ground fissures by analyzing the pseudo-coherence map of adaptively filtered differential interferogram. The manual and automatic methods are also deduced to extract the active fissure information from pseudo-coherence map. This method is tested by two real ERS SAR data sets, and the feasibilities can be well verified. In conclusion, on the one hand, the pseudo-coherence map can be applied to extract the position of active fissures, and to monitor the temporal evolution of ground fissure on the other hand, it can be used to detect the unwrapping error.
ISSN: 1000-050X
EISSN: 1671-8860
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