Title :
Repeatability of satellite yaw and pitch measurements made based on Doppler centroid of SAR imagery
Author :
Marandi, Said R.
Author_Institution :
Canadian Space Agency, Saint-Hubert, Que., Canada
Abstract :
Canada´s first remote sensing satellite, RADARSAT I, took two sets of twelve SAR images on 19-20 November 1997 and 6-7 January 1998, expressly for calibration of attitude determination system. For the first time in the operation of RADARSAT, an all around the orbit yaw and pitch profile was established from the Doppler centroid of these twelve SAR images. This paper details the inherent error margins on such attitude measurements
Keywords :
artificial satellites; attitude control; calibration; geophysical equipment; geophysical techniques; remote sensing by radar; spaceborne radar; synthetic aperture radar; AD 1997 11; AD 1998 01; Doppler centroid; RADARSAT I; SAR image; SAR imagery; artificial satellite; attitude determination; calibration; error; geophysical measurement technique; land surface; pitch; radar remote sensing; repeatability; spaceborne radar; synthetic aperture radar; terrain mapping; yaw; Calibration; Doppler shift; Extraterrestrial measurements; Frequency; Impedance; Joining processes; Position measurement; Remote sensing; Robustness; Satellite antennas;
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.1998.702249
