Title :
Design of two-channel IIR filter banks with arbitrary group delay
Author :
Lee, J.-H. ; Niu, I.-C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
12/1/2000 12:00:00 AM
Abstract :
The nonlinear optimisation problem that results from considering the design of a two-channel nonuniform division filter bank is solved. This is through a frequency sampling and iterative approximation technique to find the tap coefficients and the reflection coefficients for the numerator and the denominator of the IIR analysis filters. An efficient stabilisation procedure ensures that the reflection coefficients lie in (-1,1). Simulation examples are provided for illustration
Keywords :
IIR filters; channel bank filters; circuit optimisation; circuit simulation; delays; iterative methods; signal sampling; IIR analysis filters; denominator; design; frequency sampling; group delay; iterative approximation technique; nonlinear optimisation problem; numerator; reflection coefficients; stabilisation procedure; tap coefficients; two-channel IIR filter banks; two-channel nonuniform division filter bank;
Journal_Title :
Vision, Image and Signal Processing, IEE Proceedings -
DOI :
10.1049/ip-vis:20000489
