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A study of neural network control of robot manipulators*

Published online by Cambridge University Press:  09 March 2009

Seul Jung  and
T. C. Hsia
Seul Jung
Affiliation:
Robotics Research Laboratory, Department of Electrical and Computer Engineering, University of California at Davis, Davis, CA 95615 (USA)
T. C. Hsia
Affiliation:
Robotics Research Laboratory, Department of Electrical and Computer Engineering, University of California at Davis, Davis, CA 95615 (USA)
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Summary

The basic robot control technique is the model based computer-torque control which is known to suffer performance degradation due to model uncertainties. Adding a neural network (NN) controller in the control system is one effective way to compensate for the ill effects of these uncertainties. In this paper a systematic study of NN controller for a robot manipulator under a unified computed-torque control framework is presented. Both feedforward and feedback NN control schemes are studied and compared using a common back-propagation training algorithm. Effects on system performance for different choices of NN input types, hidden neurons, weight update rates, and initial weight values are also investigated. Extensive simulation studies for trajectory tracking are carried out and compared with other established robot control schemes.

Keywords

Neural networksSimulation studiesRobot control.

Information

Type
Articles
Information
Robotica , Volume 14 , Issue 1 , January 1996 , pp. 7 - 15
Copyright
Copyright © Cambridge University Press 1996

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