Time-frequency analysis of dispersive wave phenomena

被引：0
|
作者：
Shin, YJ [1 ]
Chao, A [1 ]
Powers, EJ [1 ]
机构：
[1] Univ Texas, Austin, TX 78712 USA
来源：
PROCEEDINGS OF THE 10TH (2000) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL III | 2000年
关键词：
dispersion effect; instantaneous frequency; group delay; group velocity; phase velocity;
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
In this paper we investigate the feasibility of using time-frequency distributions to measure time-localized phase and group velocities given wave elevation time series measured at two points spatially separated in the direction Of wave propagation. The results are compared to those obtained experimentally from classical Fourier-based cross-power spectra, which of course provide no time localization, and to theoretical estimates of phase and group velocity.
引用
收藏
页码：42 / 49
页数：8
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