Computer Modelling and Simulation of Bilinear Transformation on the Digital Infinite Impulse Response Butterworth Filter

Vorapoj Patanavijit (Assumption University, Thailand)

During the past two and half decades digital telecommunication technology and digital signal processing models have seen accelerated development and implementation to support the electronic infrastructure of the communication industry. The digital IIR (Infinite Impulse Response) filter has been the focus as the primary component within this area with dramatic progress in term of design, precision, fast operation and easy implementation. Our paper here systematically orders the significance of the digital IIR filter design approach based on Butterworth filtering and bilinear transformation for both statistical and simulation models computation. First, the magnitude response and the phase response of the transfer function of the analog filter are computed by Butterworth filtering approach. Next, the magnitude response and the phase response of the transfer function of the digital filter are computed by bilinear transformation. The simulation results of the analog filter and the digital filter are computationally analyzed in term of performance.

Journal: International Journal of Simulation- Systems, Science and Technology- IJSSST V20

Published: Feb 28, 2019

DOI: 10.5013/IJSSST.a.20.01.14