Transfer Function Parameter Identification in the Frequency domain

This paper deals with the identification of Errors-in-Variables (EIV) models corrupted by additive and uncorrelated white noises when the noise--free input is an arbitrary signal, not necessarily periodic. In particular, the paper describes a frequency domain method, that resembles in many aspects the so-called Frisch Scheme approach, originally developed in the time domain. The method is applied to the identification of the dynamic parameters of simulated mechanical systems. The effectiveness of the proposed approach, even in presence of non linear model behavior, is verified by means of numerical simulations.