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TerraSAR-X Data Acquired in Pursuit Monostatic Mode during TanDEM-X Commissioning Phase

Fritz, Thomas and Schättler, Birgit and Schwarz, Egbert (2011) TerraSAR-X Data Acquired in Pursuit Monostatic Mode during TanDEM-X Commissioning Phase. Advanced SAR Workshop 2011, 7.-9. Jun. 2011, St. Hubert, Kanada.

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Abstract

The successful launch of the second national German radar satellite TDX-1 in June 2010 marked the beginning of the challenging TerraSAR-X add-on for Digital Elevation Measurement mission. Major TanDEM-X mission goal is the consistent generation of a worldwide global digital elevation model with high accuracy. Therefore the two satellites TSX-1 and TDX-1 are flown in close configuration to form a single-pass space-borne SAR interferometer. To counterbalance the interferometric usage of the TSX-1 satellite, data for the ongoing TerraSAR-X mission have to be acquired by both satellites TSX-1 and TDX-1. Commissioning of the joint TerraSAR-X/TanDEM-X system was done in well-defined stages. TDX-1 was launched at June 21, 2010, and started its drift towards TSX-1. At July 22, 2010, it had reached a distance of 20 km and started its helix formation flight. This pursuit monostatic configuration was kept for 77 days to allow not only a thorough TDX-1 system verification, but also to qualify the overall system e.g. for the close formation flight with its zero-mean along track distance which started mid of October 2010. The good performance of both the TDX-1 satellite and the joint TerraSAR-X/TanDEM-X ground segment allowed to acquire a significant amount of TerraSAR-X data from the TDX-1 satellite in addition to the planned commissioning data set. These data represent nominal TerraSAR-X acquisitions and their processing thus leads to TerraSAR-X basic products showing a nominal product performance. This lead to the decision, that – after a careful inspection – these TDX-1 data will be made available to users for catalogue ordering despite their commissioning phase character. Of specific user interest among them are those scenes which were acquired with both the TSX-1 satellite and the TDX-1 satellite following each other in less than 3 seconds distance. This paper gives an overview of the different types of TerraSAR-X data acquired by both TSX-1 and TDX-1 in this unique pursuit monostatic flight configuration. It furthermore provides exemplary evaluations, e.g. in the area of ship detection.

Document Type:Conference or Workshop Item (Speech)
Title:TerraSAR-X Data Acquired in Pursuit Monostatic Mode during TanDEM-X Commissioning Phase
Authors:
AuthorsInstitution or Email of Authors
Fritz, ThomasThomas.Fritz@dlr.de
Schättler, BirgitBirgit.Schaettler@dlr.de
Schwarz, EgbertEgbert.Schwarz@dlr.de
Date:2011
Refereed publication:No
Editors:
EditorsEmail
UNSPECIFIEDCanadian Space Agency
Status:Published
Keywords:TerraSAR-X, TanDEM-X, Pursuit Monostatic Mode
Event Title:Advanced SAR Workshop 2011
Event Location:St. Hubert, Kanada
Event Type:Workshop
Event Dates:7.-9. Jun. 2011
Organizer:Canadian Space Agency CSA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
German Remote Sensing Data Center > National Ground Segment
Deposited By: Birgit Schättler
Deposited On:31 Jan 2012 13:56
Last Modified:24 Apr 2013 15:46

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