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Title: Output-feedback protocols without controller interaction for consensus of homogeneous multi-agent systems: A unified robust control view
Authors: Li, Xianwei
Soh, Yeng Chai
Xie, Lihua
Keywords: Output feedback protocol
Issue Date: 2017
Source: Li, X., Soh, Y. C., & Xie, L. (2017). Output-feedback protocols without controller interaction for consensus of homogeneous multi-agent systems: A unified robust control view. Automatica, 81, 37-45.
Series/Report no.: Automatica
Abstract: This paper investigates the consensus problem of homogeneous linear multi-agent systems using output feedback. An observer-type protocol is formulated, which only requires the relative output information of neighbours and does not require information exchange between controllers. It is shown that the protocol bridges some existing ones of the same nature. A robust control approach is presented for consensus protocol design, which requires one to solve a Riccati equation and a linear matrix inequality. Dual results are also discussed. By virtue of low- and high-gain techniques, it is shown that certain solvability conditions are to be satisfied to achieve consensus for agents that are not exponentially unstable or are minimum-phase, leading to a unified point of view for some existing results. A numerical example is provided to illustrate the advantages of the proposed design method.
ISSN: 0005-1098
DOI: 10.1016/j.automatica.2017.03.001
Schools: School of Electrical and Electronic Engineering 
Rights: © 2017 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Automatica, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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