• DocumentCode
    1095348
  • Title

    Tests of coherence unbiasing methods

  • Author

    Stearns, Samuel D.

  • Author_Institution
    Sandia National Laboratories, Albuquerque, NM, USA
  • Volume
    29
  • Issue
    2
  • fYear
    1981
  • fDate
    4/1/1981 12:00:00 AM
  • Firstpage
    321
  • Lastpage
    323
  • Abstract
    The causes of bias in the mean-squared coherence (MSC) estimate are discussed, assuming that the estimate is made using the FFT method. Two known unbiasing methods, prewhitening and MSC averaging, are tested in situations where the true MSC is known, and are seen to reduce bias. MSC averaging is recommended as the best unbiasing method.
  • Keywords
    Acoustic signal processing; Frequency conversion; Frequency estimation; Motion estimation; Performance evaluation; Speech processing; Testing;
  • fLanguage
    English
  • Journal_Title
    Acoustics, Speech and Signal Processing, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0096-3518
  • Type

    jour

  • DOI
    10.1109/TASSP.1981.1163540
  • Filename
    1163540
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1095348