Input-observer Event-based Secure Consensus Control of A Linear Multi-agent System under Deception Attacks

An input-observer event-based secure consensus control strategy is designed for a linear multi-agent system (MAS) under deception attacks in this paper. A novel input-observer is proposed to estimate the sum of errors among agents, and then, based on the estimation signal from this input-observer, the consensus control strategy with the event-triggered mechanism is introduced for reduction of unnecessary communications. It is proven that the MAS achieves secure consensus control in mean square sense, and the Zeno behavior is ruled out. Finally, the simulation results show the effectiveness of the proposed secure strategy.