Stabilization of Nonlinear Systems with External Disturbances Using the DE-Based Control Method

This paper investigates the stabilization of nonlinear systems with external disturbances, which are both bounded and unbounded. Firstly, problem nominal system is realized, corresponding controllers designed. Then, three suitable filters proposed applied to asymptotically estimate disturbance estimators presented used exactly eliminate disturbances. estimator (DE)-based stabilize such systems. It should be pointed out unbounded disturbances estimated by filters, has advantages over existing results. Finally, two illustrative examples, have certain symmetrical properties, taken, related numerical simulations carried verify effectiveness correctness