Robust Exponential Stability of an Intermittent Transmission State Estimation Protocol

The problem of distributed networked sensor agents jointly estimating the state of a plant given by a linear time-invariant system is studied. Each agent can only measure the output of the plant at intermittent time instances, at which times the agent also sends the received plant measurement and its estimate to its neighbors. At each agent, a decentralized observer is attached which utilizes the asynchronous incoming information being sent from its neighbors to drive its own estimate to the state of the plant. We provide sufficient conditions that guarantee global exponential stability of the zero estimation error set. Numerical illustrations are provided.

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