Wigner-Ville analysis of non-stationary random signals. (with application to turbulent microstructure signals)

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Wigner-Ville analysis of non-stationary random signals. (with application to turbulent microstructure signals)

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dc.contributor.author Boashash, Boualem
dc.contributor.author White, L
dc.contributor.author Imberger, J
dc.date.accessioned 2011-06-05T07:44:36Z
dc.date.available 2011-06-05T07:44:36Z
dc.date.issued 1986-04
dc.identifier.citation IEEE International Conference on ICASSP '86. Issue Date: Apr 1986, page(s): 2323 - 2326 en_US
dc.identifier.other Digital Object Identifier: 10.1109/ICASSP.1986.1168714
dc.identifier.uri http://hdl.handle.net/10576/10702
dc.identifier.uri http://dx.doi.org/10.1109/icassp.1986.1168714
dc.description This is an early conference paper on the application of the WVVD to real data in the field of Oceanic Engineering. A software package that calculates IF estimates and TFDs can be downloaded from the web site: www.time-frequency.net en_US
dc.description.abstract The Wigner-Ville Distribution (WVD) has recently been shown to be a valuable tool for time-Frequency Signal Analysis. Its first order moments yield directly the instantaneous frequency of the Signal. The problem of applying a window to the WVD is shown to be the same as that occurring when one uses the Fourier Transform. The choice of any classical window does not affect the estimation of the instantaneous frequency fi(t) in both deterministic and random cases. It is shown that the WVD estimator of the "evolutive spectrum" is unbiased in both time and frequency. Accuracy and statistical stability of the method are discussed. Its application to the analysis of microstructure temperature gradient signals shows that the WVD exhibits more information about the turbulence effect than the Short Time Fourier Transform. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Fourier transform en_US
dc.subject Frequency estimation en_US
dc.subject Microstructure en_US
dc.subject Signal analysis en_US
dc.subject Signal processing en_US
dc.subject Signal resolution en_US
dc.subject Spectrogram en_US
dc.subject spectral analysis en_US
dc.subject time-frequency analysis en_US
dc.subject evolutive spectrum en_US
dc.subject STFT en_US
dc.subject Time-Frequency Distributions en_US
dc.subject Wigner-Ville Distribution en_US
dc.subject instantaneous frequency en_US
dc.subject analytic signal en_US
dc.title Wigner-Ville analysis of non-stationary random signals. (with application to turbulent microstructure signals) en_US
dc.type Article en_US

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