Two-channel perfect-reconstruction FIR QMF structures which yield linear-phase analysis and synthesis filters
Two-channel perfect-reconstruction FIR QMF structures which yield linear-phase analysis and synthesis filters
Two perfect-reconstruction structures for the two-channel quadrature mirror filter (QMF) bank, free of aliasing and distortions of any kind, in which the analysis filters have linear phase, are described. The structure in the first case is related to the linear prediction lattice structure. For the second case, new structures are …