Synthesis of multiple pole digital filters by the impulse invariance technique
Odoardo Brugia, L. Giacomelli, G. Zilli, Aldo Roveri · Proceedings of the IEEE · 1973
A new class of infinite-duration impulse response (IIR) digital filters, called generalized transversal (GT) filters, is described, which can simulate any causal time-continuous system with multiple poles. It is shown that the corresponding discrete-time system can be synthesized by parallel connection of GT filters of the first and second kinds.