Title :
Generation of geometrically and radiometrically terrain corrected ScanSAR images
Author :
L?¶w, Alexander ; Mauser, Wolfram
Author_Institution :
Dept. of Earth- & Environ. Sci., Univ. of Munich, Germany
Abstract :
Inclined surface topography diminishes the geometric and radiometric quality of synthetic aperture imagery. The correction of these effects becomes indispensable when quantitative image analysis is performed with respect to the derivation of geo- and biophysical parameters. Due to their spatial extent and frequent availability, ScanSAR image products extend the operative range of microwave imagery and have a high potential for numerous operational applications over larger areas. The study presents a procedure for a pre-operational terrain correction of ScanSAR imagery as acquired by RADARSAT and ENVISAT ASAR.
Keywords :
backscatter; microwave imaging; radiometry; synthetic aperture radar; terrain mapping; topography (Earth); ENVISAT ASAR; RADARSAT; biophysical parameters; geometrically terrain corrected ScanSAR images; geophysical parameters; microwave imagery; quantitative image analysis; radiometrically terrain corrected ScanSAR images; surface topography; synthetic aperture imagery; Earth; Ellipsoids; Equations; Frequency; Image analysis; Image converters; Microwave radiometry; Sensor phenomena and characterization; Sensor systems; Surfaces;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1295340