NDLI: Tianjin suburbs PS-QPS analysis and validation with leveling data

Content Provider	IEEE Xplore Digital Library
Author	Qingli Luo Perissin, D. Dogan, O. Hui Lin Wei Wang
Copyright Year	2012
Description	Author affiliation: Institute of Space and Earth Information Science, The Chinese University of Hong Kong, China (Qingli Luo; Perissin, D.; Dogan, O.; Hui Lin) \|\| Tianjin Institute of Surveying and Mapping, China (Wei Wang)
Abstract	Permanent Scatterers (PS) based on Synthetic Aperture Radar (SAR) data has been approved to be a feasible way to detect and monitor wide area ground subsidence at a low cost. Classical PS algorithms are focused on exploring the point-like radar targets while Quasi-PS (QPS) technique was proposed to manage the detection of both distributed and decorrelating targets. In this work, we explore the potential ability of PS and QPS analysis for subsidence monitoring with L- and X-band. A case study was conducted in Tianjin suburbs and the exploited SAR datasets were composed of 23 ALOS images acquired from 2009/4/24 to 2010/10/28 and 37 TerraSAR-X images from 2009/4/29 to 2010/11/11. The average subsidence velocity map and displacement history have been retrieved by PS and QPS analysis and the validation indicates good agreement between INSAR time series results and leveling data.
Starting Page	3915
Ending Page	3918
File Size	586086
Page Count	4
File Format	PDF
ISBN	9781467311601
ISSN	21536996
e-ISBN	9781467311595
e-ISBN	9781467311588
DOI	10.1109/IGARSS.2012.6350556
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synthetic aperture radar Monitoring Interferometry Accuracy L-band Coherence Decorrelation validation Permanent Scatterers (PS) Quasi-PS (QPS) Tianjin
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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