Generalized instantaneous parameters and window matching in the time-frequency plane

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Generalized instantaneous parameters and window matching in the time-frequency plane

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dc.contributor.author Jones, Graeme
dc.contributor.author Boashash, Boualem
dc.date.accessioned 2011-04-26T09:34:54Z
dc.date.available 2011-04-26T09:34:54Z
dc.date.issued 1997-05
dc.identifier.citation IEEE Transactions on Signal Processing, Vol. 45, No. 5, pp. 1264-1275 en_US
dc.identifier.issn 1053-587X
dc.identifier.uri http://hdl.handle.net/10576/10669
dc.description High resolution Time-Frequency representations are defined by matched filtering and extension of the notions of instantaneous frequency and time delay to generalized instantaneous quantities. en_US
dc.description.abstract The concept of instantaneous parameters, which has previously been associated exclusively with 1-D measures like the instantaneous frequency and the group delay, are extended to the 2-D time-frequency plane. Such generalized instantaneous parameters are associated with the short-time Fourier transform. They may also be interpreted as local moments of certain time-frequency distributions. It is shown that these measures enable local signal behavior to be characterized in the time-frequency plane for nonstationary deterministic signals. The usefulness of the generalized instantaneous parameters is demonstrated in their application to optimal selection of windows for spectrograms. This is achieved through window matching in the time-frequency plane. An algorithm is provided that illustrates the performance of this window matching. Results based on simulated and real data are presented. en_US
dc.description.sponsorship IEEE Signal Processing Society en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Instantaneous parameters en_US
dc.subject short-time Fourier transform en_US
dc.subject time-frequency analysis en_US
dc.subject window matching en_US
dc.subject Instantaneous Frequency en_US
dc.subject instantaneous bandwidth en_US
dc.subject short-time Fourier transform en_US
dc.subject Time Frequency Distributions en_US
dc.subject FM signals en_US
dc.subject time-frequency matched filter en_US
dc.subject data dependent adaptive TFD en_US
dc.subject time delay en_US
dc.subject group delay en_US
dc.title Generalized instantaneous parameters and window matching in the time-frequency plane en_US
dc.type Article en_US

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