Wavelet transform based coherence analysis of freak wave and its impact

S.H. Kwon; H.S. Lee; C.H. Kim

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Wavelet transform based coherence analysis of freak wave and its impact

机译：基于小波变换的怪异波相干分析及其影响

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The present paper presents the results of a wavelet transform-based coherence analysis of freak wave and its impact. Wavelet transform has been used as a tool in analyzing signals in the time domain as well as in the frequency domain. The analysis was applied to laboratory-generated freak waves. The wavelet transform of the time history of the freak wave and its impact force revealed that a wide range of frequency components were contained in them. The coherence analysis was conducted on the wave and its impact force time histories. The coherence analysis revealed that some high-frequency components were highly correlated with the impact forces. The present study demonstrates that the wavelet transform can be an alternative tool in the analysis of strongly nonlinear freak wave and its impact.

机译：本文介绍了基于小波变换的怪胎波及其影响的相干分析结果。小波变换已被用作分析时域和频域信号的工具。该分析应用于实验室产生的怪胎波。畸形波的时程及其冲击力的小波变换表明，其中包含了广泛的频率成分。对波浪及其冲击力的时间历程进行了相干分析。相干分析表明，某些高频分量与冲击力高度相关。本研究表明，小波变换可以作为分析强非线性畸形波及其影响的替代工具。

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来源
《Ocean Engineering》 |2005年第13期|p.1572-1589|共18页
作者
S.H. Kwon; H.S. Lee; C.H. Kim;
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作者单位

Civil Engineering Department, Ocean Engineering Program, Texas A&M University, College Station, TX 77843-3136, USA;

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原文格式 PDF
正文语种 eng
中图分类海洋学;
关键词
freak waves; wave impact force; continuous wavelet transform; coherence analysis; smoothing of a signal; fourier transform;

机译：畸形波;波冲击力;连续小波变换;相干分析;信号平滑;傅立叶变换;

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Wavelet transform based coherence analysis of freak wave and its impact

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