Extended and unscented Kalman filters for the identification of uncertainties in a process

Nasri, Mohamed; Kinsner, W.

doi:10.1109/icci-cc.2013.6622242

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Encoding only two moments is the lowest order form of DS, but is still widely used in uncertainty quantification [13,22,23]. To reach a higher order of accuracy, one needs to include more moments in the ensemble.…”

Section: Deterministic Samplingmentioning

confidence: 99%

Propagating transport-code input parameter uncertainties with deterministic sampling

Sahlberg

Hellesen

Eriksson

et al. 2018

Plasma Phys. Control. Fusion

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A novel approach to uncertainty quantification in codes simulating fusion plasma, deterministic sampling (DS), is evaluated. This method uses a few carefully selected samples and can be used to propagate input parameter uncertainties through calculations where other sampling methods are unmanageable due to time constraints. The primary analysis is performed on the transport code TRANSP, but another faster code is also tested where a comparison with Monte Carlo sampling is made. The tests, performed with two pulses at the Joint European Torus (JET), show that even lower order DS will give a reliable estimation of the standard deviation of the calculated neutron rate. However, a higher order DS can give information about higher output moments, such as skewness an kurtosis. The TRANSP-simulated neutron rates of both examined pulses are found to have an uncertainty with an upward skewness, meaning input parameter uncertainties are can better explain an underestimation of the neutron rate than an overestimation. This information can, for example, be lead to a better benchmarking comparison between the measured and calculated neutron rates.

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Section: Deterministic Samplingmentioning

confidence: 99%

Propagating transport-code input parameter uncertainties with deterministic sampling

Sahlberg

Hellesen

Eriksson

et al. 2018

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

show abstract

null contribution of pressure control and estimation in Minimally Invasive Surgery.

Nguyen¹

2019

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Extended and unscented Kalman filters for the identification of uncertainties in a process

Cited by 2 publications

References 14 publications

Propagating transport-code input parameter uncertainties with deterministic sampling

Propagating transport-code input parameter uncertainties with deterministic sampling

null contribution of pressure control and estimation in Minimally Invasive Surgery.

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