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Publications
Pascoal, R. and Guedes Soares (2008), “Non-Parametric Wave Spectral Estimation Using Vessel Motions”, Applied Ocean Research, Vol. 30, pp. 46-53
This paper presents a numerical procedure to estimate the wave spectrum based on measured motions
of vessels at zero advance speed. The procedure has an underlying non-parametric formulation which
allows for a low constraint on spectral shape estimation. In order to make parameters readily available
and provide smooth spectral shape, a parametric form is fitted by using minimization of squared errors
between non-parametric and parametric forms. The parametric description is fast even for double peaked
spectra due to the use of simplified numerical procedure for a-priori estimation of swell and wind sea
spectral properties.
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