Title :
An analytical approach to the group delay compensation of digital IIR filters
Author :
Okoniewski, Piotr ; Piskorowski, Jacek
Author_Institution :
Fac. of Electr. Eng., West Pomeranian Univ. of Technol., Szczecin, Poland
Abstract :
Known problem regarding non-linear phase response of IIR filters is pointed out. An analytical approach of compensating group delay response of digital low-pass filters is introduced. The design procedure of an IIR low order equalizer for the elliptic filter is shown. Results are presented and compared with known methods. Proposed methodology is found to be very competitive in terms of preventing amplitude losses.
Keywords :
IIR filters; compensation; delays; elliptic filters; equalisers; losses; low-pass filters; nonlinear filters; IIR low order equalizer; amplitude loss prevention; digital IIR filter; digital low-pass filter; elliptic filter; group delay compensation response; nonlinear phase response; Delay; Equalizers; Equations; Iron; Linearity; Mathematical model; Passband;
Conference_Titel :
Methods and Models in Automation and Robotics (MMAR), 2012 17th International Conference on
Conference_Location :
Miedzyzdrojie
Print_ISBN :
978-1-4673-2121-1
DOI :
10.1109/MMAR.2012.6347908
