TanDEM-X Performance Analysis

Konferenz: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
02.06.2008 - 05.06.2008 in Friedrichshafen, Germany

Tagungsband: EUSAR 2008

Seiten: 4Sprache: EnglischTyp: PDF

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Huber, Sigurd; Younis, Marwan; Krieger, Gerhard (German Aerospace Center (DLR), Wessling, Germany)

TanDEM-X (TerraSAR-X add-on for Digital ElevationMeasurement) is a space borne X-band earth observation mission with the goal of generating a global Digital Elevation Model (DEM) with an unprecedented accuracy, corresponding to the HRTI-3 specifications. In the first part of the paper, the height performance model is presented. The analysis is extended to different terrain-types, showing a significant impact on the height accuracy. Based on a global terrain classification map, a first rough estimate of the global DEM performance is given. The second part concentrates on an analysis of the effect of the block adaptive quantiser (BAQ) in terrain with high dynamic range in backscatter power, like urban areas. Simulation results based on TerraSAR-X measurement data will be presented.