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The uncertainty induced by noise and filtering on the results of captive PMM tests Delefortrie, G.; Kishimoto, T. (2019). The uncertainty induced by noise and filtering on the results of captive PMM tests, in: The Sixth International Conference on Advanced Model Measurement Technology for the Maritime Industry (AMT’19): proceedings. pp. [1-16]
In: (2019). The Sixth International Conference on Advanced Model Measurement Technology for the Maritime Industry (AMT’19): proceedings. [S.n.]: [s.l.].
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Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage |
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Abstract |
The 28th ITTC conference recommended the methodology as proposed by Brouwer et al. (2015) to determine the uncertainty of a mean value from a single time series measurement (ITTC, 2017). In the present paper, the methodology is extended towards the prediction of the uncertainty of the harmonic components, found through Fourier analysis, on the time series of captive planar motion mechanism (PMM) tests, namely harmonic sway and harmonic yaw tests. A preliminary study was also presented by Woodward (2013). The methodology is applied on the time series of captive harmonic tests, executed by Flanders Hydraulics Research with the benchmark ship KCS (scale factor 1:52.667) in the frame of SIMMAN 2014. A second research question is how filtering, applied either in pre- or in postprocessing, affects these uncertainties. To this aim tests have been carried out at Akishima Laboratories, with and without the use of analogue filtering. The present paper proposes a methodology to assess these uncertainties. |
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