Title :
Design of two-channel equiripple FIR linear-phase quadrature mirror filters using the vector space projection method
Author :
Haddad, Khalil C. ; Stark, Henry ; Galatsanos, Nikolas P.
Author_Institution :
3Com Corp., Rolling Meadows, IL, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
A new technique for designing finite impulse response (FIR) quadrature mirror filters (QMFs) is proposed. The approach is based on the vector space projection method (VSPM). Convex constraint sets and their projections that capture the properties of the desired QMFs are given. The proposed approach produces equiripple filters. This method is compared with the classical Johnston´s (1980) method and is shown to have certain advantages.
Keywords :
FIR filters; band-pass filters; filtering theory; network synthesis; quadrature mirror filters; signal reconstruction; FIR linear-phase quadrature mirror filters; Johnston´s method; convex constraint sets; finite impulse response; perfect reconstruction QMF bank; projection onto convex sets; two-channel equiripple QMF design; vector space projection method; Algorithm design and analysis; Attenuation; Constraint theory; Finite impulse response filter; Image coding; Image reconstruction; Mirrors; Signal processing algorithms; Space technology; Speech processing;
Journal_Title :
Signal Processing Letters, IEEE
