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Mode-Switching Algorithms For Antenna ServocontrollerNew algorithms proposed to reduce acceleration and velocity perturbations caused by transitions between control modes of servocontrol system. Consists of position-control loop closed around rate (velocity)-control loop. Rate loop analog type-1 controller. Rate command (voltage) from position-loop controller compared to filtered tachometer feedback rate (voltage) to create rate error. Rate loop adjusts actuator-command signal to null rate error, causing antenna to turn at commanded rates.
Document ID
19910000430
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Nickerson, Jack A.
(Caltech)
Date Acquired
August 14, 2013
Publication Date
September 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-17489
Accession Number
91B10430
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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