Title :
Digital Group Delay Equalizer
Author :
Jus, Milan ; ONDRACEK, Oldrich ; Pucik, Jozef
Author_Institution :
Alexander Dubcek Univ. of Trencin, Trencin
Abstract :
This paper deals with problem of digital group delay equalizer for various types of digital filters. Proposed method of equalization is evaluated for a set of digital allpass filters. Whole system is analyzed in Matlab environment. Genetic algorithm has been used to design group delay equalizer. In this paper, the method of genetic algorithm is applied to group delay correction of digital IIR bandstop filters. Three examples are presented to demonstrate efficiency of the proposed method. This genetic algorithm method is suitable also for basic types of digital filters with nonlinear phase frequency response.
Keywords :
IIR filters; all-pass filters; band-stop filters; digital filters; equalisers; frequency response; genetic algorithms; Matlab; digital IIR bandstop filters; digital allpass filters; digital filters; digital group delay equalizer; genetic algorithm; group delay correction; nonlinear phase frequency response; Algorithm design and analysis; Chebyshev approximation; Delay; Digital filters; Equalizers; Frequency response; Genetic algorithms; IIR filters; Mechatronics; Poles and zeros; Group delay; allpass filter; bandstop filter; equalizer; genetic algorithm;
Conference_Titel :
Radioelektronika, 2007. 17th International Conference
Conference_Location :
Brno
Print_ISBN :
1-4244-0821-0
Electronic_ISBN :
1-4244-0822-9
DOI :
10.1109/RADIOELEK.2007.371470
