The problem of determining a rational function whose magnitude characteristic approximates some arbitrary functions of frequency in an equiripple sense is discussed. A novel method that provides a rational all‐pole equiripple approximation to any arbitrary magnitude response in the frequency domain is described. The technique is applied to a typical example that serves to illustrate the effectiveness of the method.
Unsworth, L. (2004), "All‐pole equiripple approximations to arbitrary functions of frequency", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 23 No. 2, pp. 452-466. https://doi.org/10.1108/03321640410510677Download as .RIS
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