Torque disturbance rejection in high accuracy tracking systems

The possibility of rejecting torque disturbances that degrade the pointing and tracking accuracy of electromechanical pedestals and general two-axis systems used for target acquisition and robotics is discussed. Torque rejection achieved through disturbance estimation and compensation results in a v...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 1990-03, Vol.26 (2), p.232-287
Main Authors: Profeta, J.A., Vogt, W.G., Mickle, M.H.
Format: Article
Language:English
Subjects:
Applied sciences
Azimuth
Bandwidth
Computer science
control theory
systems
Control system synthesis
Control theory. Systems
Exact sciences and technology
Frequency
Instruments
Mechanical sensors
Radar tracking
State-space methods
Target tracking
Torque
Tracking loops
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Summary:The possibility of rejecting torque disturbances that degrade the pointing and tracking accuracy of electromechanical pedestals and general two-axis systems used for target acquisition and robotics is discussed. Torque rejection achieved through disturbance estimation and compensation results in a vast improvement in pointing accuracy. For the class of disturbances considered, comparisons of a classical loop configuration of a tracker, modeled as a two-mass system, with the state-space solution indicate that at least an order-of-magnitude improvement in tracking error can be achieved.< >
ISSN:0018-9251
1557-9603
DOI:10.1109/7.53456