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Estimation of the Temporal Evolution of the Deformation Using Airborne Differential SAR Interferometry

Prats, Pau und Reigber, Andreas und Mallroqui, Jordi J. und Scheiber, Rolf und Moreira, Alberto (2008) Estimation of the Temporal Evolution of the Deformation Using Airborne Differential SAR Interferometry. IEEE Transactions on Geoscience and Remote Sensing, 46 (4), Seiten 1065-1078. IEEE. DOI: 10.1109/TGRS.2008.915758 ISSN 0196-2892

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Offizielle URL: http://www.grss-ieee.org/menu.taf?menu=publications&detail=tgars

Kurzfassung

This paper presents airborne differential SAR interferometry results using a stack of 14 images, which were acquired by the Experimental SAR (E-SAR) system of the German Aerospace Center (DLR) during a time span of two and a half hours. An advanced differential technique is used to retrieve the error in the digital elevation model and the temporal evolution of the deformation for every coherent pixel in the image. The two main limitations in airborne SAR processing are analyzed, namely the existence of residual motion errors (inaccuracies in the navigation system in the order of 1-5cm), and the accommodation of the topography and the aperture dependence on motion errors during the processing. The coupling between them is also addressed, showing that the estimation of the differential residual motion error, i.e. baseline error, can be biased when using techniques based on the coregistration between interferometric looks. The SAR focusing chain to process the data is also presented, together with the modifications in the differential interferometry processor to deal with the remaining baseline error. The detected motion of a corner reflector and the measured deformation in several agricultural fields allows validating the proposed techniques.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen:©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Titel:Estimation of the Temporal Evolution of the Deformation Using Airborne Differential SAR Interferometry
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID
Prats, PauNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Reigber, AndreasBerlin University of TechnologyNICHT SPEZIFIZIERT
Mallroqui, Jordi J.Universitat Politecnica de CatalunyaNICHT SPEZIFIZIERT
Scheiber, RolfNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Moreira, AlbertoNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:April 2008
Erschienen in:IEEE Transactions on Geoscience and Remote Sensing
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:46
DOI :10.1109/TGRS.2008.915758
Seitenbereich:Seiten 1065-1078
Verlag:IEEE
ISSN:0196-2892
Status:veröffentlicht
Stichwörter:differential interferometry, interferometry, motion compensation (MoCo), SAR processing, synthetic aperture radar (SAR)
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Flugzeug-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Hinterlegt von: Prats, Dr. Pau
Hinterlegt am:07 Apr 2008
Letzte Änderung:18 Nov 2016 13:57

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