Open AccessOn Minimal Second-order IIR Bandpass Filters with Constrained Poles and Zeros
Author(s) -
Endra Joelianto
Publication year - 2021
Publication title -
journal of engineering and technological sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 14
eISSN - 2338-5502
pISSN - 2337-5779
DOI - 10.5614/j.eng.technol.sci.2021.53.4.1
Subject(s) - infinite impulse response , band pass filter , 2d filters , control theory (sociology) , mathematics , adaptive filter , prototype filter , band stop filter , digital filter , pole–zero plot , filter (signal processing) , low pass filter , computer science , transfer function , electronic engineering , engineering , algorithm , control (management) , electrical engineering , artificial intelligence , computer vision
In this paper, several forms of infinite impulse response (IIR) bandpass filters with constrained poles and zeros are presented and compared. The comparison includes the filter structure, the frequency ranges and a number of controlled parameters that affect computational efforts. Using the relationship between bandpass and notch filters, the two presented filters were originally developed for notch filters. This paper also proposes a second-order IIR bandpass filter structure that constrains poles and zeros and can be used as a minimal parameter adaptive digital second-order filter. The proposed filter has a wider frequency range and more flexibility in the range values of the adaptation parameters.