Output-feedback sliding mode control of multivariable nonlinear systems with unmatched disturbances

What is it about?

This paper proposes an output-feedback sliding mode control design for a class of uncertain multivariable systems with nonlinear disturbances. The approach used here is based on the control parameterization employed in model-reference adaptive control.

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Why is it important?

The disturbances are allowed to be unmatched and to depend not only on the plant output but also on its unmeasurable state. A less restrictive condition on the uncertainty of the high frequency gain matrix is also obtained.

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