Global event-triggered output-feedback stabilization for switched nonlinear systems with time-delay and measurement sensitivity.

• A novel event-triggering mechanism and three dynamic gains are introduced to compensate uncertainty and execution error. • It overcomes difficulties from unknown polynomial growth rate, unknown large measurement sensitivity and time-delay. • It proves that all the signals are bounded, the states converge to zero asymptotically, and the Zeno behavior is excluded. In this paper, the problem of adaptive event-triggered output-feedback stabilization is addressed for a class of switched nonlinear systems with time-delay and output measurement sensitivity. With the assistance of the dynamic high gain technology and a novel event-triggered control mechanism, we overcome the design complexities arising from unknown polynomial growth rate with respect to the output, unknown large measurement sensitivity, unknown time-varying control coefficient and time-delay. Then, an effective constructive method is provided to design switched observers and a common event-triggered controller. Through introducing two key matrix inequalities and constructing a common Lyapunov-Krasovskii functional, sufficient conditions are given to get rid of Zeno behavior, and ensure that all the signals are bounded and the closed-loop system states converge to zero under arbitrary switchings. Two simulation studies are conducted for verifying the effectiveness of proposed scheme. [ABSTRACT FROM AUTHOR]