TanDEM-X Mission: Raw DEM Generation
Proceedings:
Conference:
EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
Town:
Aachen, Germany
Date:
06/07/2010 - 06/10/2010
Authors:
Rossi, Cristian; Eineder, Michael; Fritz, Thomas; Breit, Helko (Remote Sensing Institute, German Aerospace Center, Oberpfaffenhofen, Germany)
File size:
1.983,08 kB
Pages:
4
Language:
english
Type:
Price:
15.00 €
Payment:
Abstract:
The Raw Digital Elevation Model (DEM) is the primary output of the Integrated TanDEM-X Processor. In this paper we present the algorithms used for the last step of the processor, straight after phase unwrapping in the interferometric chain. For the generation of a DEM we adopt a powerful and fast technique based on the geometrical trends of the interferometric phase. Moreover we generate a set of maps assessing the quality of the estimated terrain heights: the first map uses the propagation of the errors in the interferometric chain; the second gives a glance of the troublesome regions of the estimation (layover, shadow, water regions and phase unwrapping flags). Dual-pass TerraSAR-X data is used for the validation of the algorithms.
