Author/Authors :
Paduart، نويسنده , , Johan and Lauwers، نويسنده , , Lieve and Swevers، نويسنده , , Jan and Smolders، نويسنده , , Kris and Schoukens، نويسنده , , Johan and Pintelon، نويسنده , , Rik، نويسنده ,
Abstract :
In this paper, we propose a method to model nonlinear systems using polynomial nonlinear state space equations. Obtaining good initial estimates is a major problem in nonlinear modelling. It is solved here by identifying first the best linear approximation of the system under test. The proposed identification procedure is successfully applied to measurements of two physical systems.
Keywords :
System identification , Nonlinear systems , Multivariable systems , Best linear approximation
