Title :
Digital all-pass filter design method based on complex cepstrum
Author :
Jovanovic-Dolecek, G. ; Diaz-Carmona, J.
Author_Institution :
Dept. of Electron., INAOE, Puebla, Mexico
fDate :
4/17/2003 12:00:00 AM
Abstract :
One method for the design of all-pass filters approximating a given all band group delay function with small approximation error is presented. The design procedure is based on the calculation of the complex cepstrum coefficients of the denominator of the all-pass filter which approximate the desired group delay in a weighted least square sense.
Keywords :
all-pass filters; cepstral analysis; delay estimation; digital filters; least squares approximations; all band group delay function; all-pass filter; approximation error; complex cepstrum; digital filter; weighted least square sense;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030463
