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Geolocation accuracy investigations with Sentinel-1

Nannini, Matteo and Prats, Pau and Yague-Martinez, Nestor and Costantini, Marco and Minati, Federico and Vecchioli, Francesco and Schmidt, Kersten and Schwerdt, Marco (2017) Geolocation accuracy investigations with Sentinel-1. In: Fringe 2005. ESA FRINGE Workshop, 2017-06-05 - 2017-06-09, Helsinki, Finland.

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This contribution analyses the geolocation accuracy of Sentinel-1 in the IW mode. Considering the geolocation accuracy has been investigated in the frame of the corresponding commissioning phases for the S1A and S1B units, this contribution is focused on certain aspects not addressed before. On the first place, the 2D (range / azimuth) geolocation accuracy will be addressed by taking into account certain processing aspects that are currently not being corrected by the operational Sentinel-1 processor. On the second place, the geolocation accuracy is also evaluated in elevation by exploiting a stack of images and the corresponding spread of the perpendicular baselines in order to perform imaging in the direction perpendicular to the line of sight, i.e., tomographic imaging. The following two paragraphs are dedicated to describe both investigations. In order to perform the analysis, an ascending stack of Sentienl-1A images acquired over DLR s calibration test site close to Munich has been used, which is composed of 18 images acquired between November 25, 2015 and July 22, 2016.

Item URL in elib:https://elib.dlr.de/111893/
Document Type:Conference or Workshop Item (Speech)
Title:Geolocation accuracy investigations with Sentinel-1
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Prats, PauUNSPECIFIEDhttps://orcid.org/0000-0002-7583-2309UNSPECIFIED
Yague-Martinez, NestorUNSPECIFIEDhttps://orcid.org/0000-0002-4923-8525UNSPECIFIED
Costantini, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-0642-0199134173736
Minati, Federicoe-geos spaUNSPECIFIEDUNSPECIFIED
Vecchioli, Francescoe-geos spaUNSPECIFIEDUNSPECIFIED
Schmidt, KerstenUNSPECIFIEDhttps://orcid.org/0000-0001-7896-908XUNSPECIFIED
Schwerdt, MarcoUNSPECIFIEDhttps://orcid.org/0000-0002-0045-3726UNSPECIFIED
Journal or Publication Title:Fringe 2005
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:Interferometry, Sentinel-1, 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 - Aircraft SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Nannini, Matteo
Deposited On:18 Apr 2017 12:30
Last Modified:02 May 2023 15:33

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