NDLI: Decentralized observer with a consensus filter for distributed discrete-time linear systems

Content Provider	IEEE Xplore Digital Library
Author	Acikmese, B. Mandic, M.
Copyright Year	2011
Description	Author affiliation: Guidance & Control Anal. Group, Jet Propulsion Lab., Pasadena, CA, USA (Acikmese, B.) \|\| Mech. & Aerosp. Eng. Dept., UCLA, Los Angeles, CA, USA (Mandic, M.)
Abstract	This paper presents a decentralized observer with a consensus filter for the state observation of a discrete-time linear distributed systems. In this setup, each agent in the distributed system has an observer with a model of the plant that utilizes the set of locally available measurements, which may not make the full plant state detectable. This lack of detectability is overcome by utilizing a consensus filter that blends the state estimate of each agent with its neighbors' estimates. We assume that the communication graph is connected for all times as well as the sensing graph. It is proven that the state estimates of the proposed observer asymptotically converge to the actual plant states under arbitrarily changing, but connected, communication and sensing topologies. As a byproduct of this research, we also obtained a result on the location of eigenvalues, the spectrum, of the Laplacian for a family of graphs with self-loops.
Sponsorship	Control Syst. Soc.
Starting Page	4723
Ending Page	4730
File Size	472674
Page Count	8
File Format	PDF
ISBN	9781457700804
ISSN	07431619
e-ISBN	9781457700811
DOI	10.1109/ACC.2011.5990815
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Observers Symmetric matrices Sensors Laplace equations Eigenvalues and eigenfunctions Equations Time measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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