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Spectral analysis of wave elevation time histories using multi-taper method

DSpace at IIT Bombay

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Title Spectral analysis of wave elevation time histories using multi-taper method
 
Creator JEYASEELAN, AS
BALAJI, R
 
Subject DISCUS BUOY
BIAS
Wave elevation time history
FFT
MTM
Laboratory waves and spectral characteristics
 
Description The estimation of spectral characteristics of a wave elevation time-history is essential for engineers and scientists to understand the nature of waves. In this study, the spectral characteristics of wave elevation time histories, measured in laboratory experiments, were derived using multi-taper method (MTM). The time histories were also subjected to conventional fast Fourier transform (FFT), and the spectral characteristics estimated using FFT were compared with estimates obtained through MTM. The study suggests the spectral estimates obtained from MTM is better than FFT. The frequencies and zeroth spectral moments estimated through MTM are found to be in agreement with target values and with the values obtained from FFT. (C) 2015 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-15T04:48:30Z
2016-01-15T04:48:30Z
2015
 
Type Article
 
Identifier OCEAN ENGINEERING, 105,242-246
0029-8018
http://dx.doi.org/10.1016/j.oceaneng.2015.06.051
http://dspace.library.iitb.ac.in/jspui/handle/100/17797
 
Language en