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Publicações
Pascoal, R., Guedes Soares, C. e Sorensen, A.J. (2005), “Ocean Wave Spectral Estimation Using Vessel Wave Frequency Motions”, Proceedings of 24th International Conference on Offshore Mechanics and Arctic Engineering (OMAE 2005), 12-17 Junho, Halkidiki, Greece, ASME, New York, USA, Paper OMAE2005-67584
Parametric and non-parametric spectral descriptions are used to estimate the wave spectra from wave frequency motions of a vessel at low advance speed, using minimization procedures based on a constrained gradient search and a genetic algorithm. The parametric description provides smooth power spectral energies as a result of the analytic spectral description. The non-parametric requires a smoothing post processing if very good readability is needed. It has been concluded that the non-parametric description is faster, more robust to model errors and likely to be a better formulation for adaptive algorithms.
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