Title :
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
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;
Conference_Titel :
Electronics, Circuits and Systems, 2000. ICECS 2000. The 7th IEEE International Conference on
Conference_Location :
Jounieh
Print_ISBN :
0-7803-6542-9
DOI :
10.1109/ICECS.2000.911491
