The design of nonuniform-band maximally decimated filter banks
B. Liu, Len T. Bruton · 1993 IEEE International Symposium on Circuits and Systems · 2002
A design method for nonuniform-band maximally decimated filter banks is presented. It is based on the quadrature mirror filter (QMF) design method and allows the direct frequency domain design of two-band filter banks having arbitrary rational decimation ratios. The numerical design of nonuniform-band filter banks is achieved using a simple structure in which elementary modulators are used in the highpass channel to obtain almost-perfect reconstruction.>