Global practical output tracking of uncertain nonlinear systems by smooth output feedback

Authors:
Keylan Alimhan;Hiroshi Inaba
Affiliations:
Department of Information Sciences, Tokyo Denki University, Saitama, Japan;Department of Information Sciences, Tokyo Denki University, Saitama, Japan
Venue:
ACMOS'07 Proceedings of the 9th WSEAS international conference on Automatic control, modelling and simulation
Year:
2007

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Abstract

This paper considers a global practical output tracking problem for a family of uncertain nonlinear systems whose Jacobian linearization is neither controllable nor observable. It is shown that under some mild conditions on such a system there is a smooth output feedback achieving global practical output tracking and such a smooth output controller is explicitly constructed by a new design method proposed. The usefulness of our result is illustrated by a numerical example.