Title :
Generation of precise wide-area geocoded elevation models with ERS SAR data
Author :
Bara, Marc ; Mora, Oscar ; Romero, Miquel ; Broquetas, Antoni
Author_Institution :
Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
6/21/1905 12:00:00 AM
Abstract :
The authors present an improved technique for the generation of digital elevation models (DEM), capable of dealing with full scene images (100×100 km) coming from an interferogram obtained with ERS satellite data. Starting from an interferometric processor aimed to the geocoding of smaller areas, now the authors expound the new improvements based on the use of ground control points (GCP) in order to calibrate some imprecisions which appear in the case of very wide swaths. A generated DEM of the test zone of Tarragona (Spain) and its error assessment are presented
Keywords :
geodesy; geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; topography (Earth); DEM; ERS; SAR; digital elevation model; error assessment; full scene image; geocoding; geodesy; geophysical measurement technique; ground control points; interferogram; land surface topography; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; very wide swath; wide-area geocoded elevation model; Digital elevation models; Earth; Electronic mail; Ellipsoids; Filtering; Image converters; Layout; Orbital calculations; Orbits; Satellites;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.774988
