Joint Time-Frequency Properties of Freak Waves
作者： Taekhyun Kim , Edward J. Powers , Nungsoo Kim , Cheung Hun Kim , Yong June Shin
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摘要: In this paper, we discuss the joint time-frequency properties of a transient freak wave in order to distinguish from non-freak waves quantitative manner. Exploring use an alternative wavelet-based approaches, distributions (TFDs), portray simultaneous timeand frequency-localized nature vs. that waves. The knowledge TFD, which represents energy distribution over time and frequency manner, is very powerful as it allows one calculate various moments conditional domains. Based on experimental series data collected at Texas A&M University, instantaneous center, bandwidth duration. power spectrum wave, where second harmonic component observed, interpret abnormal elevation domain. Also, characterized by impulsive properties, i.e., wider shorter duration than
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