elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

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

Krieger, Gerhard und Moreira, Alberto und Fiedler, Hauke und Hajnsek, Irena und Eineder, Michael und Zink, Manfred und Werner, Marian (2005) TanDEM-X: A Satellite Formation for High Resolution SAR Interferometry. In: ESA Fringe Workshop. ESA Fringe Workshop, 2005-11-28 - 2005-12-02, Frascati, Italy.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
418kB
[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
3MB

Offizielle URL: http://earth.esa.int/cgi-bin/conffringe.pl?abstract=382

Kurzfassung

TanDEM-X is a mission proposal for an innovative spaceborne radar interferometer which has been evaluated in a phase A study by a joint DLR and EADS/Astrium team. The mission concept is based on two TerraSAR-X radar satellites flying in close formation to achieve the desired interferometric baselines in a highly reconfigurable configuration. Major mission goal of TanDEM-X is the generation of a very accurate and consistent Digital Elevation Model (DEM) on a global scale. For this, appropriate orbit concepts have been introduced which allow for the generation of a global DEM according to the HRTI-3 standard within 3 years. The achievable height accuracy has been derived from a detailed performance analysis taking into account all major system and scene parameters like the finite radiometric sensitivity of the individual radar sensors, co-registration and processing errors, range and azimuth ambiguities, baseline and Doppler decorrelation, the strength and orientation of surface and vegetation scattering, quantization errors, temporal and volume decorrelation, baseline estimation errors and the chosen independent post-spacing (horizontal resolution). Furthermore, the dependency of the performance on the various operational modes and important instrument settings has been investigated and recommendations for system optimization will be given. Critical issues will be presented together with a derivation of essential requirements on both the system and mission level. Secondary mission goals of TanDEM-X are moving target indication with a distributed four aperture displaced phase centre system, the measurement of ocean currents and the detection of ice drift by along-track interferometry, high resolution SAR imaging based on a baseline induced shift of the Doppler and range spectra (super-resolution), the derivation of vegetation parameters with polarimetric SAR interferometry, large baseline bistatic SAR imaging for improved scene classification, as well as localised very high resolution DEM generation based on spotlight interferometry. The feasibility of these modes will be investigated and preliminary predictions about the achievable performance for each mode will be made.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:TanDEM-X: A Satellite Formation for High Resolution SAR Interferometry
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Krieger, GerhardNICHT SPEZIFIZIERT
Moreira, AlbertoNICHT SPEZIFIZIERT
Fiedler, HaukeNICHT SPEZIFIZIERT
Hajnsek, IrenaNICHT SPEZIFIZIERT
Eineder, MichaelNICHT SPEZIFIZIERT
Zink, ManfredNICHT SPEZIFIZIERT
Werner, MarianNICHT SPEZIFIZIERT
Datum:Dezember 2005
Erschienen in:ESA Fringe Workshop
Referierte Publikation:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:SAR, interferometry, digital elevation model, DEM, TerraSAR-X, TanDEM-X
Veranstaltungstitel:ESA Fringe Workshop
Veranstaltungsort:Frascati, Italy
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2005-11-28 - 2005-12-02
Veranstalter :European Space Agency (ESA)
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Entwicklung eines Mini-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Methodik der Fernerkundung
Institut für Hochfrequenztechnik und Radarsysteme
Institut für Hochfrequenztechnik und Radarsysteme > Satelliten-SAR-Systeme
Institut für Methodik der Fernerkundung > Bildwissenschaften
Hinterlegt von: Dr.-Ing. Gerhard Krieger
Hinterlegt am:02 Jun 2006
Letzte Änderung:12 Dez 2013 20:08

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.