Adaptive event-triggered output feedback control for a class ofp-normal nonlinear systems with sensor failure

This article investigates the problem of global adaptive output feedback control for a class ofp-normal nonlinear systems with time-varying sensor failure and unknown growth rate via an event-triggered strategy. Due to the existence of time-varying sensor failure, only the system output with sensor failure is available for feedback control design. To overcome this obstacle, an adaptive reduced-dimensional observer using only failure output is constructed. Subsequently, a novel adaptive event-triggered controller is designed by virtual of a dynamic gain technique, under which all the states of the considered closed-loop systems are bounded as well as the proposed event-triggered mechanism is Zeno-free. Finally, two examples are provided to demonstrate the validity of the presented control method.