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Deformation monitoring of urban infrastructure by tomographic SAR using multi-view TerraSAR-X data stacks

Montazeri, Sina and Zhu, Xiao Xiang and Eineder, Michael and Hanssen, Ramon and Bamler, Richard (2015) Deformation monitoring of urban infrastructure by tomographic SAR using multi-view TerraSAR-X data stacks. FRINGE 2015 Workshop, 23-27 March 2015, Frascati (Rome), Italy.

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Official URL: http://proceedings.esa.int/files/314.pdf


Synthetic Aperture Radar Tomography (TomoSAR) coupled with data from modern SAR sensors, such as the German TerraSAR-X (TS-X) produces the most detailed three-dimensional (3D) maps by distinguishing among multiple scatterers within a resolution cell. Furthermore, multi-temporal TomoSAR allows for recording the underlying deformation phenomenon of each individual scatterer. One of the limitations of using InSAR techniques, including TomoSAR, is that they only measure deformation along the radar Line-of-Sight (LOS). In order to enhance the understanding of deformation, a decomposition of the observed LOS displacement into the 3D deformation vector in the local coordinate system is desired. In this paper we propose a method, based on L1 norm minimization within local spatial cubes, to reconstruct 3D deformation vectors from TomoSAR point clouds available from, at least, three different viewing geometries. The methodology is applied on two pair of cross-heading TS-X spotlight image stacks over the city of Berlin. The linear deformation rate and amplitude of seasonal deformation are decomposed and the results from two individual test sites with remarkable deformation patterns are discussed in details.

Item URL in elib:https://elib.dlr.de/94750/
Document Type:Conference or Workshop Item (Speech)
Title:Deformation monitoring of urban infrastructure by tomographic SAR using multi-view TerraSAR-X data stacks
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hanssen, RamonTU DelftUNSPECIFIED
Date:25 March 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-8
Keywords:SAR tomography, Motion decompostion, TerraSAR-X, Very high resolution, L-1 norm minimization
Event Title:FRINGE 2015 Workshop
Event Location:Frascati (Rome), Italy
Event Type:international Conference
Event Dates:23-27 March 2015
Organizer:European Space Agency (ESA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Montazeri, Sina
Deposited On:20 Jan 2015 12:25
Last Modified:07 Apr 2016 15:47

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