Overall procedures to perform digital spectral analysis are described, including the necessary equations and analytical procedures to compute the power spectral density functions by the usually employed correlation transformation method. The details which must be considered to obtain proper statistical estimates of power spectral density functions from random data are discussed and statistical variability and bias of the spectrum estimates are reviewed. In addition to the basic statistical problems, a brief discussion reviewing measurement and data processing and reduction problems is presented. It is apparent from the discussion that statistical variability due to finite record lengths, as well as many other errors can occur in the actual data collection and analysis. The many programming problems which arise in addition to those that occur in preparing the computational procedures are discussed. Also, some of the considerations necessary to prepare proper input and output programs are mentioned. These considerations constitute a roughly complete review of the overall problem of digital spectral analysis.


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    Title :

    Digital Spectral Analysis


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Aeronautic and Space Engineering and Manufacturing Meeting ; 1965



    Publication date :

    1965-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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