Correction of periodic errors in a weather satellite servo using repetitive control

The method of control chosen to attain the precision required by the specifications for a new weather satellite produced an unstable system. The necessity for use of repetitive control in the servo controlling the east-west mirror of the imager subsystem is discussed. A unique application of repetit...

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Bibliographic Details
Main Authors: Broberg, H.L., Molyet, R.G.
Format: Conference Proceeding
Language:English
Subjects:
Artificial satellites
Control systems
Error correction
Instruments
Low pass filters
Mirrors
Pi control
Proportional control
Servomechanisms
Underwater communication
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Summary:The method of control chosen to attain the precision required by the specifications for a new weather satellite produced an unstable system. The necessity for use of repetitive control in the servo controlling the east-west mirror of the imager subsystem is discussed. A unique application of repetitive control that will be used to reduce the coherent errors is described.< >
DOI:10.1109/CCA.1992.269765