Comparison of time-frequency representations of random wave elevation data

Y. J. Shin; E. J. Powers; E. Yi

Comparison of time-frequency representations of random wave elevation data

Y. J. Shin, E. J. Powers, E. Yi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper is concerned with examining the nonstationary characteristics of laboratory-generated random waves. To do this we utilize and compare a number of time-frequency distributions belonging to Cohen's class, namely, the spectrogram, and the Wigner-Ville, Choi-Williams, and the reduced-interference distribution (RID). We also considere time-scale auto-power spectra, cross-spectra, and linear coherence spectra all of which are based on the continuous wavelet transform. With regard to Cohen's class, the RID distribution appears to be most suitable for analyzing random wave data. The wavelet-based approach appears to be most appropriate for generating complex valued time-scale spectra, such as the cross-power spectrum and the bispectrum.

Original language	English
Title of host publication	Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999
Editors	J S Chung, M Olagnon, C H Kim, A Francescutto, J S Chung, M Olagnon, C H Kim, A Francescutto
Publisher	International Society of Offshore and Polar Engineers
Pages	34-40
Number of pages	7
ISBN (Print)	1880653427
Publication status	Published - 1999
Event	Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference - Brest, France Duration: 1999 May 30 → 1999 Jun 4

Other

Other	Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference
Country/Territory	France
City	Brest
Period	99/5/30 → 99/6/4

All Science Journal Classification (ASJC) codes

General Earth and Planetary Sciences
General Engineering
General Environmental Science

Cite this

Shin, Y. J., Powers, E. J., & Yi, E. (1999). Comparison of time-frequency representations of random wave elevation data. In J. S. Chung, M. Olagnon, C. H. Kim, A. Francescutto, J. S. Chung, M. Olagnon, C. H. Kim, & A. Francescutto (Eds.), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999 (pp. 34-40). International Society of Offshore and Polar Engineers.

Shin, Y. J. ; Powers, E. J. ; Yi, E. / Comparison of time-frequency representations of random wave elevation data. Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. editor / J S Chung ; M Olagnon ; C H Kim ; A Francescutto ; J S Chung ; M Olagnon ; C H Kim ; A Francescutto. International Society of Offshore and Polar Engineers, 1999. pp. 34-40

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title = "Comparison of time-frequency representations of random wave elevation data",

abstract = "This paper is concerned with examining the nonstationary characteristics of laboratory-generated random waves. To do this we utilize and compare a number of time-frequency distributions belonging to Cohen's class, namely, the spectrogram, and the Wigner-Ville, Choi-Williams, and the reduced-interference distribution (RID). We also considere time-scale auto-power spectra, cross-spectra, and linear coherence spectra all of which are based on the continuous wavelet transform. With regard to Cohen's class, the RID distribution appears to be most suitable for analyzing random wave data. The wavelet-based approach appears to be most appropriate for generating complex valued time-scale spectra, such as the cross-power spectrum and the bispectrum.",

keywords = "Cohen's class, Time-frequency analysis, Wavelet analysis",

author = "Shin, {Y. J.} and Powers, {E. J.} and E. Yi",

year = "1999",

language = "English",

isbn = "1880653427",

pages = "34--40",

editor = "Chung, {J S} and M Olagnon and Kim, {C H} and A Francescutto and Chung, {J S} and M Olagnon and Kim, {C H} and A Francescutto",

booktitle = "Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999",

publisher = "International Society of Offshore and Polar Engineers",

address = "United States",

note = "Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference ; Conference date: 30-05-1999 Through 04-06-1999",

}

Shin, YJ, Powers, EJ & Yi, E 1999, Comparison of time-frequency representations of random wave elevation data. in JS Chung, M Olagnon, CH Kim, A Francescutto, JS Chung, M Olagnon, CH Kim & A Francescutto (eds), Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. International Society of Offshore and Polar Engineers, pp. 34-40, Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference, Brest, France, 99/5/30.

Comparison of time-frequency representations of random wave elevation data. / Shin, Y. J.; Powers, E. J.; Yi, E.
Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. ed. / J S Chung; M Olagnon; C H Kim; A Francescutto; J S Chung; M Olagnon; C H Kim; A Francescutto. International Society of Offshore and Polar Engineers, 1999. p. 34-40.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Comparison of time-frequency representations of random wave elevation data

AU - Shin, Y. J.

AU - Powers, E. J.

AU - Yi, E.

PY - 1999

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N2 - This paper is concerned with examining the nonstationary characteristics of laboratory-generated random waves. To do this we utilize and compare a number of time-frequency distributions belonging to Cohen's class, namely, the spectrogram, and the Wigner-Ville, Choi-Williams, and the reduced-interference distribution (RID). We also considere time-scale auto-power spectra, cross-spectra, and linear coherence spectra all of which are based on the continuous wavelet transform. With regard to Cohen's class, the RID distribution appears to be most suitable for analyzing random wave data. The wavelet-based approach appears to be most appropriate for generating complex valued time-scale spectra, such as the cross-power spectrum and the bispectrum.

AB - This paper is concerned with examining the nonstationary characteristics of laboratory-generated random waves. To do this we utilize and compare a number of time-frequency distributions belonging to Cohen's class, namely, the spectrogram, and the Wigner-Ville, Choi-Williams, and the reduced-interference distribution (RID). We also considere time-scale auto-power spectra, cross-spectra, and linear coherence spectra all of which are based on the continuous wavelet transform. With regard to Cohen's class, the RID distribution appears to be most suitable for analyzing random wave data. The wavelet-based approach appears to be most appropriate for generating complex valued time-scale spectra, such as the cross-power spectrum and the bispectrum.

KW - Cohen's class

KW - Time-frequency analysis

KW - Wavelet analysis

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BT - Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999

A2 - Chung, J S

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PB - International Society of Offshore and Polar Engineers

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ER -

Shin YJ, Powers EJ, Yi E. Comparison of time-frequency representations of random wave elevation data. In Chung JS, Olagnon M, Kim CH, Francescutto A, Chung JS, Olagnon M, Kim CH, Francescutto A, editors, Proceedings of the 1999 Ninth International Offshore and Polar Engineering Conference (Volume 3), Brest, France, 30 May - 4 June 1999. International Society of Offshore and Polar Engineers. 1999. p. 34-40

Comparison of time-frequency representations of random wave elevation data

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All Science Journal Classification (ASJC) codes

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