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Design of cosine-modulated filter bank prototype filters using the frequency-response masking approach

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3 Author(s)
Diniz, P.S.R. ; Program de Engenharia Eletrica, Univ. Federal de Rio de Janeiro, Brazil ; Barcellos, L.C.R. ; Netto, S.L.

We use the frequency-response masking (FRM) approach to design prototype filters for cosine-modulated filter banks in the nearly perfect reconstruction case. With such an approach, it is possible to design a FRM filter with overall order almost equal to the direct-form FIR design, with only slight changes in the values of the inter-carrier and inter-symbol interferences and the attenuation of the bank filters. The result is an efficient design with reduced number of multipliers for the overall structure

Published in:

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on  (Volume:6 )

Date of Conference:

2001