摘要

This paper proposes an event-based approach to distributed state estimation for nonlinear discrete time-delay systems over sensor networks. First, an event detector is configured at each sensor node to decide when the node should send its sampled measurement output to its neighbors across the communication network. Then, sufficient conditions for the existence of an admissible event-based distributed state estimator are established. A effective algorithm for designing both the distributed state estimator design and the parameters in the event condition could be achieved by solving a set of linear matrix inequalities. Finally, two numerical examples are provided to verify the designed event-based distributed state estimator.