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http://dx.doi.org/10.7780/kjrs.2010.26.2.143

A Comparison of InSAR Techniques for Deformation Monitoring using Multi-temporal SAR  

Kim, Sang-Wan (Department of Geoinformation Engineering, Sejong University)
Publication Information
Korean Journal of Remote Sensing / v.26, no.2, 2010 , pp. 143-151 More about this Journal
Abstract
We carried out studies on InSAR techniques for time-series deformation monitoring using multi-temporal SAR. The PSInSAR method using permanent scatterer is much more complicate than the SBAS because it includes many non-linear equation due to the input of wrapped phase. It is conformed the PS algorithm is very sensitive to even PSC selection. On the other hand, the SBAS method using interferogram of small baseline subset is simple but sensitive to the accuracy of unwrapped phase. The SBAS is better method for expecting not significant unwrapping error while PSInSAR is more proper method for expecting local deformation within very limited area. We used 51 ERS-1/2 SAR data during 1992-2000 over Las Vegas, USA for the comparison between PSInSAR and SBAS. Both PSInSAR and SBAS show similar ground deformation value although local deformation seems to be detected in the PSInSAR method only.
Keywords
SAR interferometry; deformation; time-series; SBAS; PSInSAR;
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Times Cited By KSCI : 1  (Citation Analysis)
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