Raw digital data, as received from the LANDSAT spacecraft, cannot generate images that meet specifications. Radiometric corrections must be made to compensate for aging and for differences in sensitivity among the instrument sensors. Geometric corrections must be made to compensate for off-nadir look angle, and to calculate spacecraft drift from its prescribed path. Corrections must also be made for look-angle jitter caused by vibrations induced by spacecraft equipment. The major components of the LANDSAT ground segment and their functions are discussed.
LANDSAT-D Program. Volume 2: Ground Segment
1984
225 pages
Report
No indication
English
Natural Resource Surveys , Pattern Recognition & Image Processing , Geometric rectification (Imagery) , Image enhancement , Imaging techniques , Radiometric correction , Applications programs (Computers) , Digital data , Algorithms , Landsat satellites , Software engineering , Thematic mapping , Vibration effects
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