This paper describes a robust algorithm for estimation of local signal frequency and bandwidth. The method is based on combining local estimates of instantaneous frequency over a large number of scales. The filters used are a set of lognormal quadrature wavelets. A novel feature is that an estimate of local frequency bandwidth can be obtained. The bandwidth can be used to produce a measure of certainty for the estimated frequency. The algorithm is applicable to multidimensional data and examples of the performance of the method are demonstrated for one-dimensional and two-dimensional signals.<>


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    Title :

    Local multiscale frequency and bandwidth estimation


    Contributors:
    Knutsson, H. (author) / Westin, C.-F. (author) / Granlund, G. (author)


    Publication date :

    1994-01-01


    Size :

    462623 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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