Presently, the transformation of lowpass analog prototypes constitutes an useful method of design for recursive digital filters. Although the involved bilinear and frequency band transformations are well known, the best criterion to choose the parameters of the transformations has not yet been investigated. This paper deals with the determination of such parameters in order to require the lowest order for the analog prototype.
CitacióMariño, J.B., Figueiras, A. On the design of bandpass and bandstop digital filters from lowpass analog prototypes. A: Workshop on Signal Processing and its Applications. "PWSPA 1982: Portugal workshop on signal processing and its applications: 1982 PWSPA: proceedings: Hotel Dom Pedro, Póvoa de Varzim: September 29, October 1". Póvoa de Varzim, Oporto: 0, p. A2/7/1-A2/7/8.