Title Trust-based distributed state estimation in the presence of cyber-attacks tested with hardware-in-the-loop
Authors RODRÍGUEZ DEL NOZAL, ÁLVARO, ORIHUELA ESPINA, DIEGO LUIS, ROMAINE, JAMES BRIAN, MILLÁN GATA, PABLO
External publication No
Means IEEE Control Systems Letters
Scope Article
Nature Científica
SJR Quartile 1
SJR Impact 1.671
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107172197&doi=10.1109%2fLCSYS.2021.3082309&partnerID=40&md5=42920ce856462719ad2ee50934e540ad
Publication date 20/05/2021
ISI 000668835800002
Scopus Id 2-s2.0-85107172197
DOI 10.1109/LCSYS.2021.3082309
Abstract This letter tackles the problem of estimating the state of a plant when communications are corrupted by cyber-attacks or sensor faults occur. An observer structure based on multi-hop subspace decomposition is proposed, which allows each agent to identify its observable and unobservable subspaces and to reconstruct them based on its own measurements and on the information exchanged with the rest of agents. To deal with cyber-attacks, this letter proposes a method based on weighting the information provided by agents according to an assessment of its trustworthiness. An algorithm to dynamically adjust the weighting parameters is provided and the performance of the proposed technique is assessed using a hardware-in-the-loop platform. © 2017 IEEE.
Keywords Crime; Hardware-in-the-loop simulation; Network security; State estimation; Synthetic apertures; Cyber-attacks; Distributed state estimation; Hard-ware-in-the-loop; Multihop; Observer structure; Sensor fault; Subspace decomposition; Unobservable; Computer crime
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