Slepianwavelet variances for regularly and irregularly sampled time series

  • Debashis Mondal
  • , Donald B. Percival

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We discuss approximate scale-based analysis of variance for Gaussian time series based upon Slepian wavelets. These wavelets arise as eigenfunctions of an energy maximization problem in a pass band of frequencies. Unlike the commonly used Daubechies wavelets, Slepian wavelets have the ability to accommodate both regularly and irregularly sampled data. For regularly sampled Gaussian time series, we derive statistical theory for Slepian-based wavelet variances and show that it is comparable to Daubechies-based variances. For irregularly sampled time series data, we derive a corresponding statistical theory for Slepian-based wavelet variances. We demonstrate its use on X-ray fluctuations from a binary star system and on a light curve from the variable star Z UMa.

    Original languageEnglish
    Title of host publicationStatistical Challenges in Modern Astronomy V
    PublisherSpringer Science and Business Media, LLC
    Pages403-418
    Number of pages16
    ISBN (Print)9781461435198
    DOIs
    StatePublished - 2012
    Event5th Statistical Challenges in Modern Astronomy Symposium, SCMA 2011 - University Park, PA, United States
    Duration: Jun 13 2011Jun 15 2011

    Publication series

    NameLecture Notes in Statistics
    Volume209
    ISSN (Print)0930-0325
    ISSN (Electronic)2197-7186

    Conference

    Conference5th Statistical Challenges in Modern Astronomy Symposium, SCMA 2011
    Country/TerritoryUnited States
    CityUniversity Park, PA
    Period06/13/1106/15/11

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