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Article: A novel multitemporal insar model for joint estimation of deformation rates and orbital errors

TitleA novel multitemporal insar model for joint estimation of deformation rates and orbital errors
Authors
KeywordsInterferometric synthetic aperture radar (SAR) (InSAR)
least squares
Sparse matrix
SAR
orbital error
Issue Date2014
Citation
IEEE Transactions on Geoscience and Remote Sensing, 2014, v. 52, n. 6, p. 3529-3540 How to Cite?
AbstractOrbital errors, characterized typically as longwavelength artifacts, commonly exist in interferometric synthetic aperture radar (InSAR) imagery as a result of inaccurate determination of the sensor state vector. Orbital errors degrade the precision of multitemporal InSAR products (i.e., ground deformation). Although research on orbital error reduction has been ongoing for nearly two decades and several algorithms for reducing the effect of the errors are already in existence, the errors cannot always be corrected efficiently and reliably. We propose a novel model that is able to jointly estimate deformation rates and orbital errors based on the different spatialoral characteristics of the two types of signals. The proposed model is able to isolate a long-wavelength ground motion signal from the orbital error even when the two types of signals exhibit similar spatial patterns. The proposed algorithm is efficient and requires no ground control points. In addition, the method is built upon wrapped phases of interferograms, eliminating the need of phase unwrapping. The performance of the proposed model is validated using both simulated and real data sets. The demo codes of the proposed model are also provided for reference. © 2013 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/266975
ISSN
2023 Impact Factor: 7.5
2023 SCImago Journal Rankings: 2.403
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Lei-
dc.contributor.authorDing, Xiaoli-
dc.contributor.authorLu, Zhong-
dc.contributor.authorJung, Hyung Sup-
dc.contributor.authorHu, Jun-
dc.contributor.authorFeng, Guangcai-
dc.date.accessioned2019-01-31T07:20:08Z-
dc.date.available2019-01-31T07:20:08Z-
dc.date.issued2014-
dc.identifier.citationIEEE Transactions on Geoscience and Remote Sensing, 2014, v. 52, n. 6, p. 3529-3540-
dc.identifier.issn0196-2892-
dc.identifier.urihttp://hdl.handle.net/10722/266975-
dc.description.abstractOrbital errors, characterized typically as longwavelength artifacts, commonly exist in interferometric synthetic aperture radar (InSAR) imagery as a result of inaccurate determination of the sensor state vector. Orbital errors degrade the precision of multitemporal InSAR products (i.e., ground deformation). Although research on orbital error reduction has been ongoing for nearly two decades and several algorithms for reducing the effect of the errors are already in existence, the errors cannot always be corrected efficiently and reliably. We propose a novel model that is able to jointly estimate deformation rates and orbital errors based on the different spatialoral characteristics of the two types of signals. The proposed model is able to isolate a long-wavelength ground motion signal from the orbital error even when the two types of signals exhibit similar spatial patterns. The proposed algorithm is efficient and requires no ground control points. In addition, the method is built upon wrapped phases of interferograms, eliminating the need of phase unwrapping. The performance of the proposed model is validated using both simulated and real data sets. The demo codes of the proposed model are also provided for reference. © 2013 IEEE.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensing-
dc.subjectInterferometric synthetic aperture radar (SAR) (InSAR)-
dc.subjectleast squares-
dc.subjectSparse matrix-
dc.subjectSAR-
dc.subjectorbital error-
dc.titleA novel multitemporal insar model for joint estimation of deformation rates and orbital errors-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TGRS.2013.2273374-
dc.identifier.scopuseid_2-s2.0-84896389962-
dc.identifier.volume52-
dc.identifier.issue6-
dc.identifier.spage3529-
dc.identifier.epage3540-
dc.identifier.isiWOS:000332504700042-
dc.identifier.issnl0196-2892-

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