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On the phase of Daubechies filters. (Sur la phase des filtres de Daubechies.) (French) Zbl 0828.42023

Summary: We give the first term of the asymptotic development for the phase of the \(N\)th (minimum-phased) Daubechies filter as \(N\) goes to \(+\infty\). We obtain this result through the determination of the complex zeros of the associated polynomial of degree \(2N+ 1\).

MSC:

42C15 General harmonic expansions, frames
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