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Time-Series evaluation of azimuth displacements retrieval with the experimental TerraSAR-X 2-looks TOPS acquisition mode

Yague-Martinez, Nestor and Prats, Pau and Wollstadt, Steffen (2017) Time-Series evaluation of azimuth displacements retrieval with the experimental TerraSAR-X 2-looks TOPS acquisition mode. In: Fringe 2005. ESA FRINGE Workshop, 2017-06-05 - 2017-06-09, Helsinki, Finland.

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This contribution will present the investigations carried out with stacked time-series of TerraSAR-X acquisitions made in the experimental 2-looks TOPS mode. The characteristics and benefits of this interferometric mode have been already presented in [1]. One of the advantages of the use of 2-looks TOPS mode images is the ability to estimate the scene motion in a repeat-pass configuration in the azimuth direction over non-stationary areas with a similar accuracy to the one given by the stripmap mode but providing wide coverage. The focus of this contribution is the application to time-series, where slow azimuthal motion is expected. Several aspects will be analyzed. In first place, the impact of the tropospheric delay on the azimuthal measurements is reviewed. The achievable accuracy employing a time series is presented for the along-track direction and compared to the accuracy achievable in the across-track direction. Moreover the achievable 3D performance when combining ascending and descending acquisitions will be exposed. A time-series over Mexico City with experimental TerraSAR-X acquistions has been started in March 2016 and we planned to make a validation of the achievable along-track accuracy and present results. [1] P. Prats-Iraola, N. Yague-Martinez, S. Wollstadt, T. Kraus, R. Scheiber. Demonstration of the Applicability of 2-Look Burst Modes in Non-Stationary Scenarios with TerraSAR-X. EUSAR 2016, Hamburg, Germany.

Item URL in elib:https://elib.dlr.de/112056/
Document Type:Conference or Workshop Item (Speech)
Title:Time-Series evaluation of azimuth displacements retrieval with the experimental TerraSAR-X 2-looks TOPS acquisition mode
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Yague-Martinez, NestorUNSPECIFIEDhttps://orcid.org/0000-0002-4923-8525UNSPECIFIED
Prats, PauUNSPECIFIEDhttps://orcid.org/0000-0002-7583-2309UNSPECIFIED
Wollstadt, SteffenUNSPECIFIEDhttps://orcid.org/0000-0003-3602-762XUNSPECIFIED
Journal or Publication Title:Fringe 2005
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:InSAR, Azimuth displacements, TerraSAR-X, 2 looks TOPS, TOPS
Event Title:ESA FRINGE Workshop
Event Location:Helsinki, Finland
Event Type:international Conference
Event Dates:2017-06-05 - 2017-06-09
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 Tandem-L Vorstudien (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Yague-Martinez, Nestor
Deposited On:02 May 2017 07:25
Last Modified:06 Feb 2018 11:48

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