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	Provedor de dados 5 (1) Autor Ailliot, Pierre (1) Arnault, Sabine (1) Guede, Zakoua (1) Kpogo Nuwoklo, Komlan Agbéko (1) Olagnon, Michel (1) Palavra-chave Directional wave spectrum (1) Kriging (1) Periodogram smoothing (1) Spectral estimation (1) Tipo do documento Text (1) Ano 2015 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Improvement ocean wave spectra estimation using the temporal structure of wave systems 5 Kpogo Nuwoklo, Komlan Agbéko; Ailliot, Pierre; Olagnon, Michel; Guede, Zakoua; Arnault, Sabine. Sea states are usually the combination of several time-evolving wave systems whereas the classical spectral estimation methods assume stationarity. A method that adapts to the dynamical evolution of the spectral components is proposed to improve both omnidirectional and directional sea wave spectral estimations. In this method, periodograms are computed for each sea state as in the conventional methods, and rather than only smoothing individual periodograms, the overall time-history of periodograms are simultaneously smoothed in frequency and time dimensions. Since a simple two dimensional averaging would not be appropriate because the temporal evolution of the wave systems reflects typical non-stationary behaviors, we use either kriging or adaptive 2D... Tipo: Text Palavras-chave: Directional wave spectrum; Spectral estimation; Periodogram smoothing; Kriging. Ano: 2015 URL: http://archimer.ifremer.fr/doc/00252/36309/37313.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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