Open AccessDesign of Low Frequency Suitable Fractional Order Differintegrators
Author(s) -
K. Rajasekhar,
B.T. Krishna
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.b2813.078219
Subject(s) - discretization , matlab , integrator , digital filter , filter (signal processing) , mathematics , reduction (mathematics) , algorithm , computer science , mathematical analysis , telecommunications , geometry , bandwidth (computing) , computer vision , operating system
Design of low frequency applicable fractional order digital differentiators and integrators using direct discretization is the main objective of this paper. Model order reduction procedure is used to obtain the novel first order s-to-z transform. Continued fraction expansion (CFE) technique is used to discretize that transform. The design of one-half digital differintegrators based on proposed transforms will be compared with the well known existing first order transforms namely, Bilinear and Al-Alaoui transforms. The efficacy of the designed methods presented interms of normalized magnitude error (NME). The designed fractional order digital filter coefficients are tabulated and all simulation results are carried out by using MATLAB software.