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All-pole equiripple approximations to arbitrary functions of frequency. (English) Zbl 1077.94003
The author determines a rational all-pole equiripple approximation to any arbitrary magnitude response in the frequency domain. This technique accommodates real and complex singularities. The method allows the designer to specify simultaneously both the ripple factor and the frequency range over which the approximation is to hold. The technique is illustrated by an application in telecommunications.
94A05 Communication theory
41A20 Approximation by rational functions
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