Selecting Trusted Nodes for Resilient Distributed State Estimation of Linear Time Invariant Systems
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• To control complex systems (e.g. power grids, gas turbines, transportation systems), we need to monitor their state dynamics. • Consider a linear time-invariant dynamical system whose state )(*) is monitored by a network + = ,, E of N sensor nodes. • Each node / has measurement 01(*) = 21)(*). • Each node must estimate the state ) * (asymptotically). • What if some sensors are compromised by adversaries (e.g., via cyber-attacks)?
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