Abnormal Source Identification for Parabolic Distributed Parameter Systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Article number8936866
Pages (from-to)5698-5707
Journal / PublicationIEEE Transactions on Systems, Man, and Cybernetics: Systems
Issue number9
Online published19 Dec 2019
Publication statusPublished - Sep 2021


Identification of abnormal source hidden in distributed parameter systems (DPSs) belongs to the category of inverse source problems. It is important in industrial applications but seldom studied. In this article, we make the first attempt to investigate the abnormal spatio-temporal (S-T) source identification for a class of DPSs. An inverse S-T model for abnormal source identification is developed for the first time. It consists of an adaptive state observer for source identification and an adaptive source estimation algorithm. One major advantage of the proposed inverse S-T model is that only the system output is utilized, without any state measurement. Theoretic analysis is conducted to guarantee the convergence of the estimation error. Finally, the performance of the proposed method is evaluated on a heat transfer rod with an abnormal S-T source.

Research Area(s)

  • Adaptive observer, distributed parameter systems (DPSs), inverse source problems