On the Kautz Filters and their Use in the Approximation on LinearTtime Invariant Systems

Abstract

Let H be the transfer function of a strictly stable, causal, and, linear system, and let h be its impulse response. If one does not assume a specific form for H, or, what is the same, a specific model for the system, the question arises as how to approximate that transfer function by another with a known form. (...)