Abstract
An identification problem is considered for stable rational minimum-phase transfer functions without a priori knowledge of either numerator or denominator degrees. Recently, a new technique for ARMA-system identification has been proposed by making use of the powerful concepts of positive functions and bounded functions. We examine the ARMA-system identification method and propose a new criterion for determination of ARMA model order. It is shown that the developed criterion is more simple and practical by simulation experiments.
