Hilbert-Huang transform analysis of storm waves

被引：17

作者：

Ortega, J. ^{[1
]}

Smith, George H. ^{[2
]}

机构：

[1] Ctr Invest Matemat AC, Guanajuato, Gto, Mexico

[2] Univ Exeter, Exeter EX4 4QJ, Devon, England

来源：

APPLIED OCEAN RESEARCH | 2009年 / 31卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Hilbert-Huang transform; Spectral analysis; Storm waves; EMPIRICAL MODE DECOMPOSITION; NONLINEAR WATER-WAVES;

D O I：

10.1016/j.apor.2009.09.003

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

We use the Hilbert-Huang transform (HHT) for the spectral analysis of a North Sea storm that took place in 1997. We look at the contribution of the different Intrinsic Mode Functions (IMF) obtained using the Empirical Mode Decomposition algorithm, and also compare the Hilbert Marginal Spectra and the classical Fourier Spectra for the data set and the corresponding IMFs. We find that the number of IMFs needed to decompose the data and the energy associated to them is different from previous studies for different sea conditions by other authors. A tentative reason for this may lie in the difference in the sampling rate used. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：212 / 219

页数：8

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