Title :
Design of QMF banks using allpass filters
Author :
Zhang, X. ; Iwakura, H.
Author_Institution :
Dept. of Commun. & Syst., Univ. of Electro-Commun., Chofu, Japan
fDate :
2/2/1995 12:00:00 AM
Abstract :
The authors consider the design of quadrature mirror filter (QMF) banks using digital allpass filters. The QMF banks consisting of an allpass filter and a pure delay section have an approximately linear phase response, and the phase distortion can be minimised by using another additional allpass filter as an equaliser
Keywords :
all-pass filters; filtering theory; quadrature mirror filters; QMF banks; delay section; digital allpass filters; equaliser; linear phase response; quadrature mirror filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950097
