Decentralized Secure State-Tracking in Multi-Agent Systems

This paper addresses the problem of decentralized state-tracking in presence sensor attacks. We consider a network nodes where each node has objective tracking state linear dynamical system based on its measurements and messages exchanged with neighboring notwithstanding some being spoofed by an adversary. propose novel attack-resilient algorithm simple observation that compressed version all suffices to reconstruct state. motivates 2-step solution secure problem: (1) tracks measurements, (2) asymptotically reconstructs from output step (1). prove that, under mild technical assumptions, our enables track thus solves problem.