Title :
Design of perfect reconstruction QMF banks by a null-space projection method
Author :
Xu, W. ; Lu, W.-S. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
30 Apr-3 May 1995
Abstract :
A new method is proposed for the design of two-channel linear-phase perfect reconstruction QMF banks. The analysis lowpass filter is first designed by a conventional method, and then the synthesis lowpass filter is obtained by using a null-space projection approach. This method is then extended to the design of two-channel perfect reconstruction QMF banks with low reconstruction delay, which are desirable in some applications. Two design examples are given to illustrate the proposed methods
Keywords :
delay circuits; low-pass filters; network synthesis; quadrature mirror filters; -space projection method; analysis lowpass filter; design; reconstruction delay; synthesis lowpass filter; two-channel linear-phase perfect reconstruction QMF banks; Councils; Delay systems; Design engineering; Design methodology; Equations; Finite impulse response filter; Mercury (metals); Mirrors; Nonlinear filters; Time domain analysis;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.519926
