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An efficient and simple method for designing prototype filters for cosine-modulated pseudo-QMF banks

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Abstract

We present a new method to design prototype filters for conventional cosine-modulated pseudo-quadrature mirror filter (QMF) banks. This method is based on windowing, and sets the 3-dB cutoff frequency of the filter obtained at pi/2M. In this way, the filter bank performance can be significantly improved compared to other existing design methods

Topics: TK
Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
OAI identifier: oai:wrap.warwick.ac.uk:11174
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