Least-Squares Lowpass Filters with Nonmonotonic Response

A new class of all-pole filter functions, derived from the least-squares approximation technique, is introduced. The magintude response is compared with other all-pole filters, like the Butterworth, LSM, and Chebyshev ones. The three subclasses of the new class seem to be a suitable choice for the approvximation function in filter synthesis.

Malvar_Caloba.pdf
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In  IEEE Transactions on Circuits and Systems

Publisher  Institute of Electrical and Electronics Engineers, Inc.
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