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TanDEM-X: A Satellite Formation for High Resolution SAR Interferometry

Krieger, Gerhard and Moreira, Alberto and Fiedler, Hauke and Hajnsek, Irena and Werner, Marian and Younis, Marwan and Zink, Manfred (2007) TanDEM-X: A Satellite Formation for High Resolution SAR Interferometry. IEEE Transactions on Geoscience and Remote Sensing, 45 (11), pp. 3317-3341. IEEE. DOI: 10.1109/TGRS.2007.900693.

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=4373350&arnumber=4373373&count=32&index=6

Abstract

TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative spaceborne radar interferometer that is based on two TerraSAR-X radar satellites flying in close formation. The primary objective of the TanDEM-X mission is the generation of a consistent global digital elevation model (DEM) with an unprecedented accuracy, equaling or surpassing the HRTI-3 specification. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new radar imaging techniques and applications. This paper gives a detailed overview of the TanDEM-X mission concept which is based on the systematic combination of several innovative technologies. Key elements are the bistatic data acquisition employing an innovative phase synchronization link, a new satellite formation flying concept allowing for the collection of bistatic data with short along-track baselines, as well as the use of new interferometric modes for system verification and DEM calibration. The performance is analyzed in detail taking into account the peculiarities of the bistatic operation. Based on this analysis, an optimized DEM data acquisition plan is developed which employs the combination of multiple data takes with different baselines. Finally, a collection of instructive examples illustrates the capabilities of TanDEM-X for the development and demonstration of new remote sensing applications.

Document Type:Article
Additional Information:©2007 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:TanDEM-X: A Satellite Formation for High Resolution SAR Interferometry
Authors:
AuthorsInstitution or Email of Authors
Krieger, GerhardUNSPECIFIED
Moreira, AlbertoUNSPECIFIED
Fiedler, HaukeUNSPECIFIED
Hajnsek, IrenaUNSPECIFIED
Werner, MarianUNSPECIFIED
Younis, MarwanUNSPECIFIED
Zink, ManfredUNSPECIFIED
Date:November 2007
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Volume:45
DOI:10.1109/TGRS.2007.900693
Page Range:pp. 3317-3341
Editors:
EditorsEmail
IEEE, UNSPECIFIED
Publisher:IEEE
Status:Published
Keywords:Synthetic Aperture Radar (SAR), SAR Interferometry, bistatic SAR, Digital Elevation Model (DEM), Formation Flying, Synchronisation, TerraSAR-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
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr.-Ing. Gerhard Krieger
Deposited On:12 Nov 2007
Last Modified:12 Dec 2013 20:25

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