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| Titel: |
Non-linear model parameter estimation-estimating a feasible parameter set with respect to model use |
| Auteur: |
Hvala, Nadja Zec, Mario Strmcnik, Stanko |
| Verschenen in: |
Mathematical and computer modelling of dynamical systems |
| Paginering: | Jaargang 14 (2008) nr. 6 pagina's 587-605 |
| Jaar: |
2008-12 |
| Inhoud: |
This article deals with non-linear model parameter estimation from experimental data. As for non-linear models a rigorous identifiability analysis is difficult to perform, parameter estimation is performed in such a way that uncertainty in the estimated parameter values is represented by the range of model use results when the model is used for a certain purpose. Using this approach, the article presents a simulation study where the objective is to discover whether the estimation of model parameters can be improved, so that a small enough range of model use results is obtained. The results of the study indicate that from plant measurements available for the estimation of model parameters, it is possible to extract data that are important for the estimation of model parameters relative to a certain model use. If these data are improved by a proper measurement campaign (e.g. proper choice of measured variables, better accuracy, higher measurement frequency) it is to be expected that a valid model for a certain model use will be obtained. The simulation study is performed for an activated sludge model from wastewater treatment, while the estimation of model parameters is done by Monte Carlo simulation. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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