Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 327-331, 2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
02 May 2013
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,, 2013.

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