Design of cosine-sine modulated filter banks without DC leakage

Abstract

We propose a new design structure for the M-band dual-tree wavelet transform based on the idea of using cosine-sine modulated filter banks. The filter coefficients for the real and imaginary parts of the transform will be computed by using cosine- and sine-modulated filter banks, respectively. In the proposed structure, the zero-delay and maximum-delay matrices calculated for the cosine-modulated filter banks will be extended for sine-modulated filter banks with a few sign changes. Furthermore, the resulting structure can be easily enforced with the constraints so that the prototype is able to produce a pair of DC-leakage-free filter banks. The experimental results confirmed these advantageous properties of our proposed design structure.
OriginalspracheEnglisch
Titel2014 19th International Conference on Digital Signal Processing
Seitenumfang6
Band2014-January
Herausgeber (Verlag)IEEE
Erscheinungsdatum01.08.2014
Seiten486-491
Aufsatznummer6900713
ISBN (elektronisch)978-1-4799-4612-9
DOIs
PublikationsstatusVeröffentlicht - 01.08.2014
Veranstaltung2014 19th International Conference on Digital Signal Processing - Hong Kong, Hong Kong
Dauer: 20.08.201423.08.2014
Konferenznummer: 113721

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