Title :
The design of nonuniform-band maximally decimated filter banks
Author :
Liu, Bo ; Bruton, L.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
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
Keywords :
filtering theory; frequency-domain synthesis; quadrature mirror filters; QMF design method; almost-perfect reconstruction; design method; direct frequency domain design; highpass channel; maximally decimated filter banks; modulators; nonuniform-band; numerical design; quadrature mirror filter; rational decimation ratios; two-band filter banks; Bandwidth; Channel bank filters; Design methodology; Ear; Filter bank; Frequency domain analysis; Mirrors; Sampling methods; Signal synthesis; Speech coding;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393736
