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GPI observer-based non-linear integral sliding mode control and synchronisation of uncertain chaotic system
by Dangjun Zhao; Yongji Wang; Lei Liu
International Journal of Modelling, Identification and Control (IJMIC), Vol. 16, No. 4, 2012


Abstract: An output feedback control scheme for a class of triangular chaotic systems in the presence of system uncertainties, unknown disturbances, parameter perturbations and measurement noises is proposed in this paper. A high gain general proportional integral (GPI) observer is used for the accurate linear estimation of the error states, non-linear endogenous and exogenous disturbances from the noisy output signals of the system, and then a non-linear integral sliding mode controller with active disturbance cancellation is proposed for the tracking control and synchronisation of the chaotic systems. The uncertain Gesino chaotic system is used to validate the proposed control method and the convincing numerical results illustrate the proposed method is effective to deal with various system uncertainties only based on the utilisation of the input-output data.

Online publication date: Wed, 25-Jul-2012


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