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Practical design of multi-channel oversampled warped cosine-modulated filter banks

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3 Author(s)
Vashkevich, M.I. ; Belarusian State University of Informatics and Radioelectronics, Computer Egeneering Department, st. P.Brovky, 6, 220013, Minsk, Belarus ; Wan, W. ; Petrovsky, A.A.

A practical approach to optimal design of multi-channel oversampled warped cosine-modulated filter banks (CMFB) is proposed. Warped CMFB is obtained by allpass transformation of uniform CMFB. The paper addresses the problems of minimization amplitude distortion and suppression of aliasing components emerged due to oversampling of filter bank channel signals. Proposed optimization-based design considerably reduces distortions of overall filter bank transfer function taking into account channel subsampling ratios.

Published in:
Wireless Mobile and Computing (CCWMC 2011), IET International Communication Conference on

Date of Conference: 14-16 Nov. 2011

Page(s):
44 - 49
Conference Location :
Shanghai
Digital Object Identifier :
10.1049/cp.2011.0844
Product Type:
Conference Publications

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