WAVE GROUP ANALYSIS BY THE HILBERT TRANSFORM

Proceedings of the International Conference on Coastal Engineering

Robert T. Hudspeth²  Josep R. Medina¹ 

[1] Department of Transportation, E.T.S.I. Caminos;Department of Civil Engineering, Oregon State University

关键词: wave group;    group analysis;    Hilbert Transform;   

DOI  :  10.9753/icce.v21.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

A methodology based on linear theory is presented for analyzing wave groups from a random sea representation in the complex plane. A wave height function [H(t)], a local frequency function, [0(t)] , and an orbital velocity function [V(t)] are defined from the Hilbert transform of the sea surface elevation. Envelopes computed by the Hilbert transform are compared with the SIWEH. A three axes representation of the mean lengths of runs of waves is employed to compare the lengths of runs computed by the discrete wave method with runs computed by the Hilbert transform method.

【 授权许可】

Unknown