Event-triggered exponentially robust state estimation for nonlinear systems via generalized estimator

This study considers the observer design for a more generic class of one-sided Lipschitz (OSL) systems via event-triggered approach. Further, we have considered the robustness of state estimation along with a generalized observer, rather than the classical Luenberger observer. A set forth linear matrix inequalities (LMIs)-based solution along with pseudo-inverse techniques has been presented. The presented method ensures the estimation error in a uniformly bounded region in the steady-state, whilst ensuring faster convergence of the estimated states towards actual states of the system with OSL nonlinearities both in states and output. It should be noted that very less amount of work has been devoted to the ET generalized observer design for nonlinear systems. The results are also extended for designing a local state estimator under event-triggering. A simulation example is provided to verify and the results along with comparison analysis.