Revisiting the use of squared magnitude function for the optimal approximation of (1 + α)-order Butterworth filter
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DOI: 10.1016/j.aeue.2019.152826
Abstract: Abstract Optimal rational approximation of the fractional-order Butterworth filter (FBF) based on a two-step design procedure is proposed. Firstly, the coefficients of the squared magnitude function of an approximant which matches the squared magnitude response… read more here.
Keywords: approximation; order butterworth; order; magnitude function ... See more keywords