COMPLEX ENVELOPE IDENTIFICATION OF WAVE GROUPS

Rodney J. Sobey; Han-Bin Liang

doi:10.9753/icce.v20.57

No. 20 (1986), Conference Proceedings

No. 20 (1986)

COMPLEX ENVELOPE IDENTIFICATION OF WAVE GROUPS

Conference Proceedings

https://doi.org/10.9753/icce.v20.57

Published 1986-01-29

Rodney J. Sobey⁺⁻
Han-Bin Liang⁺⁻

Rodney J. Sobey

Hydraulic and Coastal Group, Department of Civil Engineering, University of California, Berkeley

Han-Bin Liang

Hydraulic and Coastal Group, Department of Civil Engineering, University of California, Berkeley

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Keywords

wave groups
wave envelope
envelope identification

How to Cite

Sobey, R. J., & Liang, H.-B. (1986). COMPLEX ENVELOPE IDENTIFICATION OF WAVE GROUPS. Coastal Engineering Proceedings, 1(20), 57. https://doi.org/10.9753/icce.v20.57

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.

https://doi.org/10.9753/icce.v20.57

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COMPLEX ENVELOPE IDENTIFICATION OF WAVE GROUPS

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