Title :
Design of linear phase Bessel IIR digital filters
Author :
Paarmann, Larry D. ; Atris, Youssef H.
Author_Institution :
Dept. of Electr. Eng., Wichita State Univ., KS, USA
Abstract :
There are several methods in the literature for mapping from the s plane to the z plane. The two most common methods are the impulse-invariance method and the bilinear transform. In this paper, an algorithmic method is presented such that phase characteristics on the jω axis in the s plane are preserved on the unit circle in the z plane. This preservation of the phase is not accomplished with other methods. In this paper, the algorithm is applied to the design of linear phase Bessel IIR digital filters
Keywords :
IIR filters; digital filters; transforms; algorithmic method; bilinear transform; impulse-invariance method; linear phase Bessel IIR digital filters; phase characteristics; phase preservation; unit circle; z plane; Algorithm design and analysis; Autocorrelation; Cepstral analysis; Chebyshev approximation; Cutoff frequency; Decorrelation; Design methodology; Digital filters; Frequency response; Prototypes;
Conference_Titel :
Circuits and Systems, 1996., IEEE 39th Midwest symposium on
Conference_Location :
Ames, IA
Print_ISBN :
0-7803-3636-4
DOI :
10.1109/MWSCAS.1996.587804
