• DocumentCode
    1134896
  • Title

    On Second-Order Statistics of Log-Periodogram With Correlated Components

  • Author

    Ephraim, Yariv ; Roberts, William J.J.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., George Mason Univ., Fairfax, VA, USA
  • Volume
    12
  • Issue
    9
  • fYear
    2005
  • Firstpage
    625
  • Lastpage
    628
  • Abstract
    We derive an explicit expression for the covariance of the log-periodogram power spectral density estimator for a zero mean Gaussian process. We do not make the assumption that the spectral components of the process are uncorrelated. Applications to spectral estimation and to cepstral modeling in automatic speech recognition are discussed.
  • Keywords
    Gaussian processes; cepstral analysis; correlation methods; covariance analysis; speech recognition; automatic speech recognition; cepstral modeling; correlated components; covariance; log-periodogram power spectral density estimator; second-order statistics; zero mean Gaussian process; Additive noise; Autocorrelation; Automatic speech recognition; Cepstral analysis; Discrete Fourier transforms; Frequency; Gaussian processes; Silver; Speech recognition; Statistics; Log-periodogram; speech recognition;
  • fLanguage
    English
  • Journal_Title
    Signal Processing Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1070-9908
  • Type

    jour

  • DOI
    10.1109/LSP.2005.853049
  • Filename
    1495428
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1134896