Distributed trace estimation under timing mismatch and channel distortion

R. Su

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    In conservative (or complete) trace-based distributed fault diagnosis it is common to compute, for each component, a preliminary local estimate consisting of all possible traces that can generate the same local symptom (i.e., a collection of sequences of observable events) as the one being received from that component up to a specific time instant. Then communication among local trace estimators can be used to refine those preliminary local estimates. An approach has been proposed by Su and Wonham to perform such refinement in terms of achieving global or local consistency among local estimates. But that approach does not consider timing mismatch and channel distortion in the process of collecting local symptoms, which may result in incorrect estimates in practical applications. In this paper, we will provide a new approach to handle trace estimation under timing mismatch and channel distortion.
    Original languageEnglish
    Pages (from-to)2409-2414
    JournalIEEE Transactions on Automatic Control
    Volume53
    Issue number10
    DOIs
    Publication statusPublished - 2008

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