Title :
Quantitative exploitation of RADARSAT CDPF products for land applications: geometric and radiometric considerations
Author :
Lukowski, T.I. ; Hawkins, R.K.
Author_Institution :
Canada Centre for Remote Sensing, Ottawa, Ont., Canada
Abstract :
RADARSAT images produced by the Canadian Data Processing Facility assume that the Earth is, in general, elliptical but the locally spherical approximation can easily be made. This can have significant impact on the determination of location error from the images and on the correction for antenna pattern that is performed in the processing. Selected examples show that even at terrain altitudes of 2000 m these can be significant leading to radiometric errors of many dB and location errors of several km
Keywords :
geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; CDPF; RADARSAT; antenna pattern; correction; geometric consideration; geophysical measurement technique; image registration; land surface; location error; radar imaging; radar remote sensing; radiometric consideration; radiometric error; spaceborne radar; spherical approximation; terrain mapping; Data processing; Earth; Error correction; Geometry; Lighting; Radiometry; Remote sensing; Sea level; Spaceborne radar; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.702248
