Title :
RADARSAT-1 image quality excellence in the extended mission
Author :
Srivastava, S.K. ; Cote, S. ; Le Dantec, P. ; Hawkins, R.K.
Author_Institution :
Satellite Oper., Canadian Space Agency, Saint-Hubert, Que., Canada
Abstract :
RADARSAT-1, the first Canadian SAR remote sensing satellite, continues to provide calibrated data to worldwide users since the start of its routine operation on April 1, 1996, more than 9 years after its launch on November 4, 1995. Both single beams and ScanSAR imagery are still monitored routinely for radiometric calibration performance based on images of the Amazon Rainforest, and for image quality performance using imagery of the RADARSAT-1 precision transponders. This paper briefly describes image quality results and recalibration work.
Keywords :
artificial satellites; calibration; data acquisition; forestry; microwave measurement; radar imaging; radiometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; Amazon Rainforest; Canadian SAR remote sensing satellite; RADARSAT-1; ScanSAR imagery; image quality; precision transponders; radiometric calibration performance; recalibration; single beams; Antenna measurements; Aperture antennas; Calibration; Heating; Image quality; Payloads; Radiometry; Remote monitoring; Satellite broadcasting; Transponders;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings. 2005 IEEE International
Print_ISBN :
0-7803-9050-4
DOI :
10.1109/IGARSS.2005.1526088
