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| Title: | WAVE DATA ANALYSIS BY HILBERT HUANG TRANSFORM AND CONVENTIONAL DISCRETIZATION METHODS | |
| DOI No: | 10.1142/9789812701916_0077 | |
| Source: | COASTAL ENGINEERING 2004 (pp 972-984) | |
| Author(s): | ALBENA D. VELTCHEVA
Coastal Engineering Division, ECOH Co, Portside-daiya Bldg., 10-35 Sakae-cho, Kanagawa-ku, Yokohama, Kanagawa 221-0052, Japan CARLOS GUEDES SOARES Unit of Marine Technology and Engineering, Technical University of Lisbon, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001, Lisbon, Portugal |
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| Abstract: | The importance of the analyzing technique for the correct understanding of the wind waves is discussed. Widely used methods for wave analysis assume linear and stationary sea waves. The Hilbert-Huang Transform (HHT) method is proposed as alternative one for investigation of the nonlinear and non-stationary nature of real sea waves. Easy separation of the different time and energy associated with the oscillations in the data is well achieved by HHT. The energy hierarchy in the decomposition of wave records, observed during different sea conditions, reflects the specific peculiarities of the particular wave data. | |
| Full Text: | View full text in PDF format (630KB) | |
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