M-channel Linear Phase Perfect Reconstruction Filter Bank with Integer Coeecients

An Efficient Algorithm to Design Nearly Perfect-Reconstruction Two-Channel Quadrature Mirror Filter Banks

In this paper, a novel technique for the design of two-channel Quadrature Mirror Filter (QMF) banks with linear phase in frequency domain is presented. To satisfy the exact reconstruction condition of the filter bank, low-pass prototype filter response in pass-band, transition band and stop band is optimized using unconstrained indirect update optimization method. The objective function is form...

M-Channel Linear Phase Cosine Modulated Filter Banks with Perfect Reconstruction

A class of cosine modulated filter banks in which all the sub-band filters have linear phase is presented. It has only M bands compared to the M 2 channel structures so far reported in the literature. The filter bank uses only one prototype filter for both analysis and synthesis side and structurally guarantee perfect reconstruction property. The formulation is based on DCT-II. The necessary an...

M -Channel Linear Phase Perfect Reconstruction Filter Bank With Rational Coefficients

This paper introduces a general class of -channel linear phase perfect reconstruction filter banks (FBs) with rational coefficients. A subset of the presented solutions has dyadic coefficients, leading to multiplierless implementations suitable for lowpower mobile computing. All of these FBs are constructed from a lattice structure that is VLSI-friendly, employs the minimum number of delay elem...

Tran : M - Channel Linear Phase Perfect Reconstruction Filter Bank with Rational Coefficients

LINEAR PHASE COSINE MODULATED MAXIMALLY DECIMATED FILTER BANKS WITH PERFECT RECONSTRUCTION t

In this paper a new type of maximally decimated FIR cosine modulated filter banks is proposed. Each analysis and synthesis filter in this filter bank has linear phase. We can design the system to have approximate reconstruction property (pseudoQMF system) or perfect reconstruction property (PR system). The filter bank is paraunitary in the PR case. Although there are 2M channels in the new syst...