Conditions for Detectability in Distributed Consensus-Based Observer Networks
Valery Ugrinovskii · IEEE Transactions on Automatic Control · 2013
This technical note discusses fundamental detectability properties associated with the problem of distributed state estimation using networked observers. The main result of the technical note establishes connections between detectability of the plant through measurements, observability of the node filters through interconnections, and algebraic properties of the underlying communication graph, to ensure the interconnected filtering error dynamics are stabilizable via output injection.