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Distributed Observer over Delayed Sensor Networks for Systems with Unknown Inputs

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/76922

Title: Distributed Observer over Delayed Sensor Networks for Systems with Unknown Inputs
Authors: Adachi, Ryosuke Browse this author
Yamashita, Yuh Browse this author →KAKEN DB
Kobayashi, Koichi Browse this author →KAKEN DB
Keywords: sensor network
data aggregation
communication delay
distributed estimation
Issue Date: Feb-2020
Publisher: 電子情報通信学会(The Institute of Electronics, Information and Communication Engineers / IEICE)
Journal Title: IEICE transactions on fundamentals of electronics communications and computer sciences
Volume: E103.A
Issue: 2
Start Page: 469
End Page: 477
Publisher DOI: 10.1587/transfun.2019MAP0012
Abstract: In this paper, we consider the design problem of an unknown-input observer for distributed network systems under the existence of communication delays. In the proposed method, each node estimates all states and calculates inputs from its own estimate. It is assumed that the controller of each node is given by an observer-based controller. When calculating each node, the input values of the other nodes cannot be utilized. Therefore, each node calculates alternative inputs instead of the unknown inputs of the other nodes. The alternative inputs are generated by own estimate based on the feedback controller of the other nodes given by the assumption. Each node utilizes these values instead of the unknown inputs when calculating the estimation and delay compensation. The stability of the estimation error of the proposed observer is proven by a Lyapunov-Krasovskii functional. The stability condition is given by a linear matrix inequality (LMI). Finally, the result of a numerical simulation is shown to verify the effectiveness of the proposed method.
Rights: copyright©2020 IEICE
Relation: http://search.ieice.org/
Type: article
URI: http://hdl.handle.net/2115/76922
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 小林 孝一

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