Modeling PSInSAR time series without phase unwrapping
IEEE Transactions on Geoscience and Remote Sensing
By: L. Zhang, X. Ding, and Z. Lu
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Abstract
In this paper, we propose a least-squares-based method for multitemporal synthetic aperture radar interferometry that allows one to estimate deformations without the need of phase unwrapping. The method utilizes a series of multimaster wrapped differential interferograms with short baselines and focuses on arcs at which there are no phase ambiguities. An outlier detector is used to identify and remove the arcs with phase ambiguities, and a pseudoinverse of the variance-covariance matrix is used as the weight matrix of the correlated observations. The deformation rates at coherent points are estimated with a least squares model constrained by reference points. The proposed approach is verified with a set of simulated data.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Modeling PSInSAR time series without phase unwrapping |
| Series title | IEEE Transactions on Geoscience and Remote Sensing |
| DOI | 10.1109/TGRS.2010.2052625 |
| Volume | 49 |
| Issue | 1 |
| Year Published | 2011 |
| Language | English |
| Publisher | IEEE |
| Contributing office(s) | Earth Resources Observation and Science (EROS) Center |
| Description | 10 p. |
| First page | 547 |
| Last page | 556 |
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