Transitional Legendre Thomson filters
Gaetano Aiello, Paolo M. Angelo · IEEE Transactions on Circuits and Systems · 1974
Among those filters which exhibit both a good frequency and transient behavior, we suggest a new kind of filter, of the transitional type, whose characteristics lie between those of monotonic with maximum cutoff rate (Legendre) and linear phase (Thomson) filters. Attenuation, group delay, and step responses are given. Characteristics curves for the design of a fifth-order transitional Legendre-Thomson (TLT) filter are also presented.