Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 327-331, 2013
https://doi.org/10.5194/isprsarchives-XL-1-W1-327-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
02 May 2013
TANDEM-X MISSION: OVERVIEW, STATUS AND OUTLOOK
U. Steinbrecher, M. Zink, A. Moreira, M. Bachmann, J. Böer, D. Schulze, and G. Krieger German Aerospace Center (DLR), Microwaves and Radar Institute, Oberpfaffenhofen, D-82234 Wessling, Germany
Keywords: TanDEM-X, TerraSAR-X, SAR, Radar, Interferometer, DEM, Digital Elevation Model Abstract. TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) opens a new era in spaceborne radar remote sensing [1]–[3], [9], [12]. Realized in the framework of a public-private partnership between the German Aerospace Center (DLR) and EADS Astrium GmbH, a single-pass SAR interferometer with adjustable baselines in across- and in along-track directions was formed by adding a second (TDX), almost identical spacecraft to TerraSAR-X (TSX) and flying the two satellites in a closely controlled formation on average orbit height of 514 km. This allows the acquisition of highly accurate cross-track and along-track interferograms without the inherent accuracy limitations imposed by repeat-pass interferometry due to temporal decorrelation and atmospheric disturbances. With typical across-track baselines of 150 to 500 m a global Digital Elevation Model (DEM) with 2 m relative height accuracy at a 12 m posting is being generated.
Conference paper (PDF, 664 KB)


Citation: Steinbrecher, U., Zink, M., Moreira, A., Bachmann, M., Böer, J., Schulze, D., and Krieger, G.: TANDEM-X MISSION: OVERVIEW, STATUS AND OUTLOOK, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 327-331, https://doi.org/10.5194/isprsarchives-XL-1-W1-327-2013, 2013.

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