Design of m-channel tree-structured filter banks with very low-complexity analysis filters

Author

Elias, Elizabeth ; Löwenborg, Per ; Johansson, Håkan ; Wanhammar, Lars

Author_Institution

Dept. of Electron. Eng., Calicut Regional Eng. Coll., India

Volume

1

fYear

2000

fDate

2000

Firstpage

87

Abstract

A class of M-channel tree-structured digital filter banks is considered with half-band IIR analysis filters and FIR synthesis filters. The filter banks approximate perfect reconstruction with an exact linear phase response and zero aliasing. This particular configuration has a very low-complexity analysis filter bank. In this paper we address the problem of minimizing the synthesis filter complexity, given the minimum-complexity analysis filters. The filter banks are designed using linear and nonlinear programming

Keywords

FIR filters; IIR filters; channel bank filters; linear phase filters; linear programming; nonlinear programming; trees (mathematics); FIR synthesis filters; exact linear phase response; half-band IIR analysis filters; linear programming; low-complexity analysis filter bank; m-channel tree-structured filter banks; nonlinear programming; perfect reconstruction; synthesis filter complexity; very low-complexity analysis filters; zero aliasing; Channel bank filters; Digital filters; Educational institutions; Filter bank; Finite impulse response filter; IIR filters; Linear programming; Phase distortion; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2000. ICECS 2000. The 7th IEEE International Conference on

Conference_Location

Jounieh

Print_ISBN

0-7803-6542-9

Type

conf

DOI

10.1109/ICECS.2000.911491

Filename

911491