Nonlinear Continuous-discrete Observer: Application to a Wastewater Treatment Plant
نویسندگان
چکیده
In this paper, a combination between a nonlinear continuous time dynamical model and discrete time output measurements has been investigated for estimating the unknown states. Assuming some persistent excitation conditions and the sampling steps to satisfy some boundedness hypotheses, system observability is ensured and consequently, guarantees the convergence of the continuous-discrete time observer synthesized in this work. The Lyapunov method is used to describe the stability analysis and for the observer synthesis. An application to wastewater treatment plant (WWTP) model is presented. Performances of the proposed approach are illustrated through numerical simulation.
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