CUED Publications database

Fully Distributed Resilient State Estimation Based on Distributed Median Solver

Lee, JG and Kim, J and Shim, H (2020) Fully Distributed Resilient State Estimation Based on Distributed Median Solver. IEEE Transactions on Automatic Control, 65. pp. 3935-3942. ISSN 0018-9286

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Abstract

In this article, we present a scheme of fully distributed resilient state estimation for linear dynamical systems under sensor attacks. The proposed state observer consists of a network of local observers, where each of them utilizes local measurements and information transmitted from the neighbors. As a fully distributed scheme, it does not necessarily collect a majority of sensing data for the sake of attack identification, whereas the compromised sensors are eventually identified by the distributed network and excluded from the observers. For this, the overall network (not the individual local observer) is assumed to have redundant sensors and assumed to be connected. The proposed scheme is based on a novel design of a distributed median solver, which approximately recovers the median value of local estimates.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 15 Oct 2020 03:36
Last Modified: 24 Aug 2021 02:56
DOI: 10.1109/TAC.2020.2989275