TANDEM-X MISSION: OVERVIEW, STATUS AND OUTLOOK
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 interferomete...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2013-05-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W1/327/2013/isprsarchives-XL-1-W1-327-2013.pdf |
| Summary: | 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. |
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| ISSN: | 1682-1750 2194-9034 |