A mixed Butterworth/Daubechies wavelet analysis/synthesis system

TitleA mixed Butterworth/Daubechies wavelet analysis/synthesis system
Publication TypeConference Paper
Year of Publication1994
AuthorsAboulnasr, T.
Conference NameCircuits and Systems, 1994. ISCAS '94., 1994 IEEE International Symposium on
Pagination453 -456 vol.2
Date Publishedmay.
Abstract

This paper discusses the close relationship between the FIR Daubechies wavelet filters and the IIR Butterworth wavelet filters. The frequency responses of both types of filters are first compared. An ldquo;almost equivalent rdquo; Daubechies/Butterworth pair is then identified. To demonstrate the ldquo;equivalence rdquo; of these two filters, a wavelet-based filter bank using a combination of Daubechies/Butterworth filters is proposed. This relationship is used to implement a fully causal, more efficient filter bank. An example to verify the performance of the proposed hybrid system is given

URLhttp://dx.doi.org/10.1109/ISCAS.1994.409000
DOI10.1109/ISCAS.1994.409000

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