Chapter
Dec 31, 2015
Complex Envelope Identification of Wave Groups
Authors: Rodney J. Sobey and Han-Bin LiangAuthor Affiliations
Publication: Coastal Engineering 1986
Abstract
The complex envelope function is presented as the natural analysis technique for wave records where the identification of wave groups is a dominant interest. Algorithms have been developed and confirmed for separation of the complex envelope function, estimation of the dominant frequency and unwrapping of the phase function. Cross-correlograms and coherence spectra reveal a link between the envelope amplitude and phase traces that appears to be an intrinsic property of wave groups. Nevertheless, the majority of the information in typical wave records can be described as random, accounting for the relative success of the Gaussian random wave model.
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Published In
Coastal Engineering 1986
Pages: 752 - 766
Copyright
© 1987 American Society of Civil Engineers.
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Published online: Dec 31, 2015
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Rodney J. Sobey
Professor, Hydraulic and Coastal Group, Department of Civil Engineering, University of California, Berkeley, California, 94720
Han-Bin Liang
Graduate Student, Hydraulic and Coastal Group, Department of Civil Engineering, University of California, Berkeley, California 94720
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