Initial estimates for the dynamics of a Hammerstein system |
| |
Authors: | J. Schoukens W.D. Widanage R. Pintelon |
| |
Affiliation: | a Department ELEC, Vrije Universiteit Brussel, Pleinlaan 2, B1050 Brussels, Belgium b School of Engineering, University of Warwick, Coventry CV4 7AL, UK |
| |
Abstract: | This paper studies the generation of initial estimates for the dynamic part of a Hammerstein model. It will be shown that ARMAX or Box-Jenkins models result in better initial estimates than ARX or output-error (OE) models even in the absence of disturbing noise. This will be proven by noticing that a static nonlinear system can be replaced by a static gain plus a nonlinear noise source that acts in a completely similar way to disturbing noise for the study of the second-order properties of the estimators in the prediction error framework. |
| |
Keywords: | Hammerstein systems Initial estimates ARMAX Box-Jenkins |
本文献已被 ScienceDirect 等数据库收录! |