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Initialization of physical parameter estimates

Author(s):

P.A. Parrilo, L. Ljung
Conference/Journal:

IFAC Symposium on System Identification, Rotterdam, The Netherlands, 27-29 August
Abstract:

Grey box models of dynamical systems contain designated parameters with physical interpretation to be estimated from input-output data. This often gives distinct advantages over black-box models in terms of fewer parameters to estimate and hence better statistical accuracy. The basic theory for how this can be done is well established. The main practical obstacle may however be how the search for the estimates should be initialized. In this contribution we review the difficulties and point to a possibility to use semidefinite programming and a sum-of-squares formulation to achieve guaranteed consistent initial values for the physical parameters.

Year:

2003
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@InProceedings { ParLju:2003:IFA_1727,
    author={P.A. Parrilo and L. Ljung},
    title={{Initialization of physical parameter estimates}},
    booktitle={IFAC Symposium on System Identification},
    pages={},
    year={2003},
    address={Rotterdam, The Netherlands},
    month=aug,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=1727}
}
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