Title :
Weighted minimax design of QMF banks: results and comparisons
Author :
Abdel-Raheem, Esam ; El-Guibaly, Fayez ; Antoniou, Andreas
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
An iterative method proposed by Chen and Lee (1992) with certain modifications based on the weighted least-squares (WLS) updating scheme proposed by Sunder and Ramathandran (1994) is applied to the design of quadrature mirror-image filter (QMF) banks. The results are then compared with results obtained by other WLS methods described in the literature. The design of QMF banks satisfying prescribed specifications is also considered
Keywords :
delay circuits; filtering theory; iterative methods; least squares approximations; minimax techniques; quadrature mirror filters; QMF banks; iterative method; prescribed specifications; quadrature mirror-image filter; weighted least-squares updating scheme; weighted minimax design; Channel bank filters; Error analysis; Filter bank; Finite impulse response filter; Frequency measurement; Iterative methods; Joining processes; Minimax techniques; Phase distortion; Transfer functions;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.504509
