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Distributed parameter estimation under event-triggered communications
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Decision and Control Systems (Automatic Control). KTH, School of Electrical Engineering and Computer Science (EECS), Centres, ACCESS Linnaeus Centre.
The LSC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, China.
The College of Control Science and Engineering, Zhejiang University, China.
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Decision and Control Systems (Automatic Control). KTH, School of Electrical Engineering and Computer Science (EECS), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2019 (English)In: Proceedings of the 2019 Chinese Control Conference (CCC), 2019, p. 5888-5893Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we study a distributed parameter estimation problem with an asynchronous communication protocol over multi-agent systems. Different from traditional time-driven communication schemes, in this work, data can be transmitted between agents intermittently rather than in a steady stream. First, we propose a recursive distributed estimator based on an event-triggered communication scheme, through which each agent can decide whether the current estimate is sent out to its neighbors or not. With this scheme, considerable communications between agents can be effectively reduced. Then, under mild conditions including a collective observability, we provide a design principle of triggering thresholds to guarantee the asymptotic unbiasedness and strong consistency. Furthermore, under certain conditions, we reveal that, with probability one, for every agent the time interval between two successive triggering instants goes to infinity as time goes to infinity. Finally, we provide a numerical simulation to validate the theoretical results of this paper.

Place, publisher, year, edition, pages
2019. p. 5888-5893
National Category
Computer Systems
Identifiers
URN: urn:nbn:se:kth:diva-268253DOI: 10.23919/ChiCC.2019.8865873Scopus ID: 2-s2.0-85074400686OAI: oai:DiVA.org:kth-268253DiVA, id: diva2:1426508
Conference
2019 Chinese Control Conference (CCC) 27-30 July 2019
Note

QC 20200427

Available from: 2020-04-27 Created: 2020-04-27 Last updated: 2020-04-27Bibliographically approved

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Publisher's full textScopushttps://ieeexplore.ieee.org/document/8865873

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He, XingkangJohansson, Karl H.

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