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GPS Based Relative Navigation for the TanDEM-X Mission – First Flight Results

Montenbruck, Oliver and Wermuth, Martin and Kahle, Ralph (2011) GPS Based Relative Navigation for the TanDEM-X Mission – First Flight Results. Navigation, 58 (4), pp. 293-304. Wiley. ISSN 0028-1522

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TanDEM-X is the first Synthetic Aperture Radar (SAR) mission using close formation flying for bistatic SAR interferometry. Within three years, TanDEM-X will enable a global mapping of Earth and production of a high resolution digital elevation model (DEM). As a prerequisite for the interferometric SAR processing, the relative position, or baseline, of the two spacecraft must be determined with millimeter accuracy. In support of this task, the two spacecraft are equipped with geodetic-grade GPS receivers. Independent baseline solutions from the German Space Operations Center (DLR/GSOC) and the German Research Centre for Geosciences (GFZ) will be merged into a quality controlled combined product prior to use in the DEM generation. This paper provides an overview of the baseline determination process and discusses specific aspects such as phase pattern calibration, ambiguity resolution, and a trade-off between single- and dual-frequency solutions. First flight results from the early commissioning phase are presented.

Item URL in elib:https://elib.dlr.de/73970/
Document Type:Article
Title:GPS Based Relative Navigation for the TanDEM-X Mission – First Flight Results
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Montenbruck, OliverDLRUNSPECIFIED
Date:December 2011
Journal or Publication Title:Navigation
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 293-304
Keywords:TanDEM-X, GPS, baseline determination, orbit determination
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Montenbruck, Dr.rer.nat.hab. Oliver
Deposited On:23 Jan 2012 18:00
Last Modified:06 Sep 2019 15:28

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