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Comparison of the Time-Delay Margin of a Distributed and Centralized Observer

Abstract : The benefit of a distributed observer concept for large-scale linear plants is shown by taking time-delays into account. It is asserted that a centralized observer suffers from delays in the measurement input, while a distributed structure allows to avoid them. In contrast, the network of the distributed observer induces communication delays among observer nodes. The delay margins for both observer concepts are estimated on a numerical example and compared using an eigenvalue-based frequency domain approach and an LMI based time-domain approach.
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Submitted on : Thursday, November 7, 2019 - 12:48:17 PM
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Haik Silm, Rosane Ushirobira, Denis Efimov, Wim Michiels, Jean-Pierre Richard, et al.. Comparison of the Time-Delay Margin of a Distributed and Centralized Observer. ECC 2018 - European Control Conference, Jun 2018, Limassol, Cyprus. ⟨hal-01761390v2⟩

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