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Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors

Hueso Gonzalez, Jaime and Bachmann, Markus and Krieger, Gerhard and Fiedler, Hauke (2010) Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors. IEEE Transactions on Geoscience and Remote Sensing, 48 (2), pp. 716-726. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2009.2034980.

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The TanDEM-X mission, result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, opens a new era in spaceborne radar remote sensing. The first bistatic satellite synthetic aperture radar mission is formed by flying the TanDEM-X and TerraSAR-X in a closely controlled helix formation. The primary mission goal is the derivation of a high-precision global digital elevation model (DEM) according to High-Resolution Terrain Information (HRTI) level 3 accuracy. The finite precision of the baseline knowledge and uncompensated radar instrument drifts introduce errors that may compromise the height accuracy requirements. By means of a DEM calibration, which uses absolute height references, and the information provided by adjacent interferogram overlaps, these height errors can be minimized. This paper summarizes the exhaustive studies of the nature of the residual-error sources that have been carried out during the development of the DEM calibration concept. Models for these errors are set up and simulations of the resulting DEM height error for different scenarios provide the basis for the development of a successful DEM calibration strategy for the TanDEM-X mission.

Item URL in elib:https://elib.dlr.de/58383/
Document Type:Article
Additional Information:©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Date:February 2010
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 716-726
EditorsEmailEditor's ORCID iD
Ruf, Christophercruf@umich.eduUNSPECIFIED
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Baseline, DEM calibration, Interferometry, Phase errors, Synthetic aperture radar, TanDEM-X
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:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Hueso Gonzalez, Jaime
Deposited On:24 Mar 2009
Last Modified:31 Jul 2019 19:24

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