Multiple window spectrogram and time-frequency distributions

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Multiple window spectrogram and time-frequency distributions

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dc.contributor.author Fraser, G
dc.contributor.author Boashash, Boualem
dc.date.accessioned 2011-07-24T06:22:04Z
dc.date.available 2011-07-24T06:22:04Z
dc.date.issued 1994-04
dc.identifier.citation ICASSP 1994, volume:iv , pages IV/293 en_US
dc.identifier.isbn 0-7803-1775-0
dc.identifier.uri http://hdl.handle.net/10576/10715
dc.description This is a significant paper with an important innovation that extends and combines TFDS and multiple windows. 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 We extend the spectrum estimation method of Thomson (1982, 1990) to non-stationary signals by formulating a multiple window spectrogram. The traditional spectrogram can be represented as a member of Cohen's class of time-frequency distributions (TFDs) where the smoothing kernel is the Wigner distribution of the signal temporal window. We show the unusual shape of the Cohen's class smoothing kernels corresponding to the Thomson method multiple windows. These are a class of smoothing kernels not hitherto used in time-frequency (t-f) analysis. Examples of the multiple window spectrogram applied to a noisy dual linear FM test signal and to actual underwater acoustic data demonstrate the merit of the method. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Acoustic noise en_US
dc.subject Acoustic testing en_US
dc.subject Kernel en_US
dc.subject Multi-stage noise shaping en_US
dc.subject Shape en_US
dc.subject Smoothing methods en_US
dc.subject Spectral analysis en_US
dc.subject Spectrogram en_US
dc.subject Time frequency analysis en_US
dc.subject Underwater acoustics en_US
dc.subject Quadratic class smoothing kernels en_US
dc.subject Thomson method en_US
dc.subject Wigner-Ville Distribution en_US
dc.subject multiple window spectrogram en_US
dc.subject linear FM test signal en_US
dc.subject non-stationary signals en_US
dc.subject Signal analysis en_US
dc.subject signal temporal window en_US
dc.subject smoothing kernel en_US
dc.subject spectrum estimation method en_US
dc.subject time-frequency analysis en_US
dc.subject time-frequency distributions en_US
dc.subject Underwater acoustic data en_US
dc.subject time-frequency signal processing en_US
dc.title Multiple window spectrogram and time-frequency distributions en_US
dc.type Article en_US

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