Improvement on observer-based H∞ tracking control for TS fuzzy systems with unmeasurable premise variables

This paper provides an improved result for the problem of the observer based H∞ fuzzy tracking control for TS fuzzy systems with unmeasurable premise variables. New approaches for H∞ controller design with both unmeasurable premisses and system states for TS fuzzy systems have been proposed. The determination of observer and controller gains is parameterized in terms of Linear Matrix Inequality (LMI) constraints which can be efficiently solved in single step using convex optimization techniques. Finally, we have applied the proposed method for a three tank system to illustrate the effectiveness of the tracking control.

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