Applications of Kautz Models in System Identification
1993 (English)Report (Other academic)
FIR, ARX or AR model structures can be used to describe many industrial processes. Simple linear regression techniques can be applied to estimate such models from experimental data. However, for low signal to noise ratios in combination with transfer function poles and noise model zeros close to the unit circle, a large number of model parameters are needed to generate adequate models. The Kautz model structure generalizes FIR, ARX and AR models. By using a priori knowledge about the dominating time constants and damping factors of the system, the model complexity is reduced, and the linear regression structure is retained. The objective of this contribution is to study an industrial example, where Kautz models have distinct advantages. The data investigated corresponds to aircraft flight flutter, which is a state when an aircraft component starts to oscillate.
Place, publisher, year, edition, pages
Linköping: Linköping University , 1993. , 4 p.
LiTH-ISY-R, ISSN 1400-3902 ; 1510
Modeling, System identification, Parameter estimation, Aircraft modeling, Kautz functions
IdentifiersURN: urn:nbn:se:liu:diva-55603ISRN: LiTH-ISY-R-1510OAI: oai:DiVA.org:liu-55603DiVA: diva2:316313