WAVE DATA ANALYSIS BY HILBERT HUANG TRANSFORM AND CONVENTIONAL DISCRETIZATION METHODS

摘要

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.