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This paper presents the theory and design of a class of perfect-reconstruction (PR) recombination nonuniform cosine-modulated filter-banks (CMFBs) when the numbers of channels in the two filter-banks (FBs) are not coprime to each other. Since the analysis and synthesis filters are linear periodic time varying, a new method is proposed to minimize the additional aliasing components. A detailed design example is given to demonstrate the usefulness of the proposed method.
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on (Volume:5 )
Date of Conference: 2002