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TerraSAR-X Calibration Status - 2 Years in Flight

Schrank, Dirk und Schwerdt, Marco und Bachmann, Markus und Döring, Björn und Schulz, Clemens (2009) TerraSAR-X Calibration Status - 2 Years in Flight. In: Proceedings of the CEOS SAR Workshop on Calibration and Validation (CEOS SAR CalVal). CEOS SAR Workshop on Calibration and Validation (CEOS SAR CalVal), 2009-11-17 - 2009-11-19, Passadena, USA.

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Kurzfassung

As TerraSAR-X, launched in June 2007, is an operational scientific mission with commercial potential, product quality is of paramount importance. The success or failure of the mission is essentially dependent on the calibration of the TerraSAR-X system ensuring the product quality and the correct in-orbit operation of the entire SAR system. Based on the excellent calibration results achieved during the commissioning phase after launch, continuing calibration guarantees a stable product quality and monitors the correct operation of the entire SAR system during whole life time of TerraSAR-X. Therefore, one essential task is long term system monitoring (LTSM) performed by periodic measurements over rainforest and permanently deployed reference targets, to ensure stable antenna patterns and constant radiometric accuracy of the instrument. In addition to regular LTSM measurements, an extended re calibration of the TerraSAR-X system was performed in July 2009. In contrast to the nominal LTSM task several beams for a wide range of incidence angles have been measured against a multitude of reference targets. Due to this great amount of different measurements precise results based on reliable statistics have been achieved. The paper describes the different activities performed for LTSM and re calibration of TerraSAR-X and discusses the results.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:TerraSAR-X Calibration Status - 2 Years in Flight
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Schrank, Dirkdirk.schrank@dlr.de
Schwerdt, Marcomarco.schwerdt@dlr.de
Bachmann, Markusmarkus.bachmann@dlr.de
Döring, Björnbjoern.doering@dlr.de
Schulz, Clemensclemens.schulz@dlr.de
Datum:2009
Erschienen in:Proceedings of the CEOS SAR Workshop on Calibration and Validation (CEOS SAR CalVal)
Status:veröffentlicht
Stichwörter:TerraSAR-X; re-calibration; long term system monitoring
Veranstaltungstitel:CEOS SAR Workshop on Calibration and Validation (CEOS SAR CalVal)
Veranstaltungsort:Passadena, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2009-11-17 - 2009-11-19
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 - Projekt TerraSAR-X Kalibration und Projektunterstützung (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Satelliten-SAR-Systeme
Hinterlegt von: Dirk Schrank
Hinterlegt am:20 Okt 2009 16:15
Letzte Änderung:15 Jan 2010 01:53

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