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Articles | Volume XXXVIII-4/W19
https://doi.org/10.5194/isprsarchives-XXXVIII-4-W19-359-2011
https://doi.org/10.5194/isprsarchives-XXXVIII-4-W19-359-2011
10 Sep 2012
 | 10 Sep 2012

EVALUATION OF INSAR DEM FROM HIGH-RESOLUTION SPACEBORNE SAR DATA

K. Watanabe, U. G. Sefercik, A. Schunert, and U. Sörgel

Keywords: InSAR, TerraSAR-X, DSM Generation, Building Height Estimation, Accuracy

Abstract. In recent years a new generation of high-resolution SAR satellites became operational like the Canadian Radarsat-2, the Italian Cosmo/Skymed, and the German TerraSAR-X systems. The spatial resolution of such devices achieves the meter domain or even below. Key products derived from remote sensing imagery are Digital Elevation Models (DEM). Based on SAR data various techniques can be applied for such purpose, for example, Radargrammetry (i.e., SAR Stereo) and SAR Interferometry (InSAR). In the framework of the ISPRS Working Group VII/2 "SAR Interferometry" a long term scientific project is conducted that aims at the validation of DEM derived from data of modern SAR satellite sensors. In this paper, we present DEM results yield for the city of Barcelona which were generated by means of SAR Interferometry.