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TANDEM-X: A RADAR INTERFEROMETER WITH TWO FORMATION FLYING SATELLITES

Krieger, Gerhard and Zink, Manfred and Moreira, Alberto (2012) TANDEM-X: A RADAR INTERFEROMETER WITH TWO FORMATION FLYING SATELLITES. In: Proc. International Astronautical Congress, pp. 1-12. International Astronautical Congress (IAC), 2012-10-01 - 2012-10-05, Naples, Italy.

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Abstract

TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative formation flying radar mission that opens a new era in spaceborne radar remote sensing. The primary objective is the acquisition of a global Digital Elevation Model (DEM) with unprecedented accuracy (12 m horizontal and 2 m vertical resolution). This goal is achieved by extending the TerraSAR-X synthetic aperture radar (SAR) mission by a second, TerraSAR-X like satellite (TDX) flying in close formation with TerraSAR-X (TSX). Both satellites form together a large single-pass SAR interferometer with the opportunity for flexible baseline selection. This enables the acquisition of highly accurate cross-track interferograms without the inherent accuracy limitations imposed by repeat-pass interferometry due to temporal decorrelation and atmospheric disturbances. Besides the primary goal of the mission, several secondary mission objectives based on along-track interferometry as well as new bistatic and multistatic SAR techniques have been defined, representing an important and innovative asset of the TanDEM-X mission. TanDEM-X is implemented in the framework of a public-private partnership between the German Aerospace Center (DLR) and EADS Astrium GmbH. The TanDEM-X mission was successfully launched in June 2010 and started operational data acquisition in December 2010. This paper provides an overview of the TanDEM-X mission and summarizes its actual status and performance. Furthermore, results from several scientific radar experiments are presented that show the great potential of future formation flying interferometric SAR missions to serve novel remote sensing applications.

Item URL in elib:https://elib.dlr.de/79710/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:TANDEM-X: A RADAR INTERFEROMETER WITH TWO FORMATION FLYING SATELLITES
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krieger, GerhardUNSPECIFIEDUNSPECIFIED
Zink, ManfredUNSPECIFIEDUNSPECIFIED
Moreira, AlbertoUNSPECIFIEDUNSPECIFIED
Date:October 2012
Journal or Publication Title:Proc. International Astronautical Congress
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-12
Status:Published
Keywords:TanDEM-X
Event Title:International Astronautical Congress (IAC)
Event Location:Naples, Italy
Event Type:international Conference
Event Dates:2012-10-01 - 2012-10-05
Organizer:International Astronautical Federation
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:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Krieger, Dr.-Ing. Gerhard
Deposited On:17 Dec 2012 09:27
Last Modified:31 Jul 2019 19:39

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