• DocumentCode
    3058542
  • Title

    Study of climatic series by time-frequency analysis

  • Author

    Benoist, J.P. ; Glangeaud, F. ; Martin, N. ; Lacoume, J.L. ; Lorius, C. ; Ouahman, A. Alt

  • Author_Institution
    Laboratorie de Glaciologie et Géophysique de l´´Environment du CNRS, Grenoble Cedex, France
  • Volume
    7
  • fYear
    1982
  • fDate
    30072
  • Firstpage
    1902
  • Lastpage
    1905
  • Abstract
    A climatic record given by isotopic composition of ice from Dome C (Antarctica) is studied using evolutive spectral analysis by AR process. Problems which occur when trends and non periodic accidents are present in the signal are examined. Experimental studies show that filtering with a smooth time limited window is better than the use of filters with abrupt cut-off frequencies.
  • Keywords
    Autoregressive processes; Convolution; Cutoff frequency; Data analysis; Low pass filters; Sampling methods; Signal processing; Signal sampling; Spectral analysis; Time frequency analysis;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '82.
  • Type

    conf

  • DOI
    10.1109/ICASSP.1982.1171822
  • Filename
    1171822
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3058542