Calibration of the TerraSAR-X and the TanDEM-X Satellite for the TerraSAR-X Mission

Conference: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
04/23/2012 - 04/26/2012 at Nuremberg, Germany

Proceedings: EUSAR 2012

Pages: 4Language: englishTyp: PDF

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Schwerdt, Marco; Schrank, Dirk; Bachmann, Markus; Gonzalez, Jaime Hueso; Döring, Björn J.; Tous-Ramon, Nuria; Antony, John Walter (Microwave and Radar Institute of the German Aerospace Center (DLR), Germany)

In addition to the first satellite TerraSAR-X (TSX) already in-flight since 2007 [1], the second satellite TanDEM-X (TDX) could be successfully launched in 2010 [2]. The primary object of the TanDEM-X mission is to generate a highly accurate digital elevation model (DEM) with never achieved accuracy on global scale. But in addition to this DEM acquisition based on a bistatic satellite constellation of TSX and TDX, nominal TerraSAR-X operation shall be available anymore, i.e. both satellites TSX and the TDX have to enable both missions in parallel: the monostatic TerraSAR X and the bistatic TanDEM X mission. Consequently the second satellite TDX had to achieve the same accuracy and performance as those of the first satellite TSX. Based on a short overview of the different calibration tasks the paper discusses the calibration results of both satellites achieved in 2010.