Robust chaotic fuzzy output feedback tracking control

In this paper, we propose a chaotic fuzzy reference tracking control with immeasurable states. First we represent the chaotic system reference model into T-S fuzzy models. Then a controller design is proposed to deal with mismatched parameters between the system matrices of the plant and reference model. Then an observer is designed. For different premise variables between the plant and reference model, a robust approach is used. Since simultaneous solution to both the controller and observer gains with disturbances are not trivial, a three step method is utilized. The methodology proposed above is applied to Chua's circuit in numerical simulations and DSP-based experiments.