Orthogonal, exactly periodic subspace decomposition

D. Darian Muresan, Thomas W. Parks

    Research output: Contribution to journalArticlepeer-review

    56 Scopus citations

    Abstract

    The detection and estimation of machine vibration multiperiodic signals of unknown periods in white Gaussian noise is investigated. New estimates for the subsignals (signals making up the received signal) and their periods are derived using an orthogonal subspace decomposition approach. The concept of exactly periodic signals is introduced. This in turn simplifies and enhances the understanding of periodic signals.

    Original languageEnglish
    Pages (from-to)2270-2279
    Number of pages10
    JournalIEEE Transactions on Signal Processing
    Volume51
    Issue number9
    DOIs
    StatePublished - Sep 2003

    Keywords

    • Harmonics
    • Period estimation
    • Periodic signals
    • Signal decomposition
    • Signal transforms

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