Application of the wavelet transform and inverse wavelet transform to analyze the ocean wave signals from data buoys

L. C. Wu, C. C. Kao, D. J. Doong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ocean wave acceleration signal measured from the data buoy system is a key to derive wave features. It is well- recognized that most of the geophysical quantities are usually non-stationary, so are wave acceleration signals. This study applies a method, based on the theory of the continuous wavelet transform and its inverse, to derive the ocean wave scalogram and sea surface elevation from wave acceleration signals. Irregular wave signals are used to verify the practicality of the wavelet algorithm. After analyzing the natural wave acceleration signals, the wave scalogram presents instant wave nonlinearities at some short-time duration from the wave time series records.

Original languageEnglish
Title of host publicationOCEANS'10 IEEE Sydney, OCEANSSYD 2010
DOIs
Publication statusPublished - 2010 Nov 22
EventOCEANS'10 IEEE Sydney, OCEANSSYD 2010 - Sydney, NSW, Australia
Duration: 2010 May 242010 May 27

Publication series

NameOCEANS'10 IEEE Sydney, OCEANSSYD 2010

Other

OtherOCEANS'10 IEEE Sydney, OCEANSSYD 2010
CountryAustralia
CitySydney, NSW
Period10-05-2410-05-27

Fingerprint

Buoys
Inverse transforms
Water waves
Wavelet transforms
Time series

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

Cite this

Wu, L. C. ; Kao, C. C. ; Doong, D. J. / Application of the wavelet transform and inverse wavelet transform to analyze the ocean wave signals from data buoys. OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 2010. (OCEANS'10 IEEE Sydney, OCEANSSYD 2010).
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abstract = "The ocean wave acceleration signal measured from the data buoy system is a key to derive wave features. It is well- recognized that most of the geophysical quantities are usually non-stationary, so are wave acceleration signals. This study applies a method, based on the theory of the continuous wavelet transform and its inverse, to derive the ocean wave scalogram and sea surface elevation from wave acceleration signals. Irregular wave signals are used to verify the practicality of the wavelet algorithm. After analyzing the natural wave acceleration signals, the wave scalogram presents instant wave nonlinearities at some short-time duration from the wave time series records.",
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Wu, LC, Kao, CC & Doong, DJ 2010, Application of the wavelet transform and inverse wavelet transform to analyze the ocean wave signals from data buoys. in OCEANS'10 IEEE Sydney, OCEANSSYD 2010., 5603544, OCEANS'10 IEEE Sydney, OCEANSSYD 2010, OCEANS'10 IEEE Sydney, OCEANSSYD 2010, Sydney, NSW, Australia, 10-05-24. https://doi.org/10.1109/OCEANSSYD.2010.5603544

Application of the wavelet transform and inverse wavelet transform to analyze the ocean wave signals from data buoys. / Wu, L. C.; Kao, C. C.; Doong, D. J.

OCEANS'10 IEEE Sydney, OCEANSSYD 2010. 2010. 5603544 (OCEANS'10 IEEE Sydney, OCEANSSYD 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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