On-line Model Structure Selection for Estimation of Plasma Boundary in a Tokamak

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00450942" target="_blank" >RIV/61389021:_____/15:00450942 - isvavai.cz</a>
Alternative codes found
RIV/67985556:_____/15:00450942
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/659/1/012010" target="_blank" >http://dx.doi.org/10.1088/1742-6596/659/1/012010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/659/1/012010" target="_blank" >10.1088/1742-6596/659/1/012010</a>

Result language
angličtina
Original language name
On-line Model Structure Selection for Estimation of Plasma Boundary in a Tokamak
Original language description
Control of the plasma field in the tokamak requires reliable estimation of the plasma boundary. The plasma boundary is given by a complex mathematical model and the only available measurements are responses of induction coils around the plasma. For the purpose of boundary estimation the model can be reduced to simple linear regression with potentially infinitely many elements. The number of elements must be selected manually and this choice significantly influences the resulting shape. In this paper, weinvestigate the use of formal model structure estimation techniques for the problem. Specifically, we formulate a sparse least squares estimator using the automatic relevance principle. The resulting algorithm is a repetitive evaluation of the least squares problem which could be computed in real time. Performance of the resulting algorithm is illustrated on simulated data and evaluated with respect to a more detailed and computationally costly model FREEBIE.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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