Title :
A new approach for the design of low-delay quadrature mirror filter banks
Author :
Xu, H. ; Lu, W.-S. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
31 Oct-2 Nov 1994
Abstract :
An iterative approach is proposed for the design of two-channel QMF banks with low reconstruction delays. The perfect reconstruction condition is formed in the time-domain and the design efficiency is significantly improved by formulating a quadratic objective function in each step of an iterative process whose minimum point can be obtained in closed form. The proposed method is demonstrated by a design example
Keywords :
band-pass filters; delays; filtering theory; iterative methods; quadrature mirror filters; signal reconstruction; time-domain synthesis; closed form expression; design efficiency; iterative approach; low reconstruction delays; low-delay quadrature mirror filter banks; perfect reconstruction condition; quadratic objective function; time-domain; two-channel QMF banks; Channel bank filters; Constraint optimization; Delay systems; Filter bank; Iterative methods; Mirrors; Optimization methods; Radio access networks; Time domain analysis; Tree data structures;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471610
