An augmented observer for the distributed estimation problem for LTI systems

Shinkyu Park, Nuno C. Martins

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Scopus citations

Abstract

This paper studies a network of observers for a distributed estimation problem, where each observer assesses a portion of output of a given LTI system. The goal of each observer is to compute a state estimate that asymptotically converges to the state of the LTI system. We consider there is a sparsity constraint that restricts interconnections between observers. We provide a sufficient condition for the existence of parameters for the observers which achieve the convergence of the state estimates to the state of the LTI system. In particular, this condition can be written in terms of the eigenvalues of the Laplacian matrix of the underlying communication graph and the spectral radius of the dynamic matrix of the LTI system. © 2012 AACC American Automatic Control Council).
Original languageEnglish (US)
Title of host publicationProceedings of the American Control Conference
Pages6775-6780
Number of pages6
StatePublished - Nov 26 2012
Externally publishedYes

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