Title :
Interpolated LIR Mth-band filter design with allpass subfilters
Author :
Tuncer, T. Engin ; Nguyen, Truong Q.
Author_Institution :
Dept. of Electron. Eng., Ankara Univ., Turkey
fDate :
8/1/1995 12:00:00 AM
Abstract :
We propose a new allpass-based structure for the IIR Mth-and 2Mth-band filters. These filters consist of M allpass filters and an interpolation filter (sum of two allpasses). Consequently, the proposed structure is very efficient in implementation. By choosing the allpass phase appropriately, the resulting phase response of the IIR Mth-band filter becomes approximately linear. An example is designed and compared with FIR Mth-band filters
Keywords :
IIR filters; all-pass filters; delay circuits; filtering theory; interpolation; FIR Mth-band filters; IIR 2Mth-band filters; allpass filters; allpass phase; allpass subfilters; allpass-based structure; interpolated IIR Mth-band filter design; interpolation filter; linear response; phase response; Design methodology; Digital filters; Filter bank; Finite impulse response filter; IIR filters; Interpolation; Passband; Publishing; Signal processing; Speech processing;
Journal_Title :
Signal Processing, IEEE Transactions on
