• DocumentCode
    3028675
  • Title

    On the variance of time and frequency averages over modified periodograms

  • Author

    Welch, Peter D.

  • Author_Institution
    IBM Watson Research Center, Yorktown Heights, N.Y.
  • Volume
    2
  • fYear
    1977
  • fDate
    0-0 May 1977
  • Firstpage
    58
  • Lastpage
    62
  • Abstract
    Expressions of a common form will be given for the variance of spectral estimators which are either time or frequency averages over modified periodograms. A modified periodogram is a generalization of the usual periodogram in which the time sample is premultiplied by a data window. Such estimates include almost all in common use and this discussion should clarify the relationships between practical alternatives.
  • Keywords
    Convolution; Discrete Fourier transforms; Frequency estimation; Passband; Reactive power; Shape; Stochastic processes; Virtual manufacturing;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '77.
  • Conference_Location
    Hartford, CT, USA
  • Type

    conf

  • DOI
    10.1109/ICASSP.1977.1170279
  • Filename
    1170279
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3028675