Review
•Estimation of directional spectra of the coastal wave field
•Lygre and Krogstat (1986) and Hashimoto et al. (1997)
• Estimation of directional spectra of the wave field by using the maximum entropy method (MEM)
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•Donelan et al. (1996) and Donelan (2001)
• Application of the wavelet transform to the directional wave analysis
q
D
Fourier transform
A(t) → FA( f )
MEM
s → ks (r, q )
q
D
Wavelet transform
A(t) → WA(s, t)