A functional observer based fault detection technique for dynamical systems

Kianoush Emami, Tyrone Fernando, Brett Nener, H.M. Trinh, Y. Zhang

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


© 2015 The Franklin Institute. Published by Elsevier Ltd. All rights reserved. This paper presents a functional observer based fault detection method. The fault detection is achieved using a functional observer based fault indicator that asymptotically converges to a fault indicator that can be derived based on the nominal system. The asymptotic value of the proposed fault indicator is independent of the functional observer parameters and also the convergence rate of the fault indicator can be altered by choosing appropriate functional observer parameters. The advantage of using this new method is that the observed system is not necessarily needed to be observable; therefore, the proposed fault detection technique is also applicable for systems where state observers cannot be designed; moreover, the functional observer fault detection scheme is always of reduced order in comparison to a state observer based scheme.
Original languageEnglish
Pages (from-to)2113-2128
JournalJournal of the Franklin Institute
Issue number5
Publication statusPublished - 2015


Dive into the research topics of 'A functional observer based fault detection technique for dynamical systems'. Together they form a unique fingerprint.

Cite this