Window matching in the time-frequency plane and the adaptive spectrogram

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Window matching in the time-frequency plane and the adaptive spectrogram

Show simple item record Jones, G Boashash, B 2011-10-11T09:51:03Z 2011-10-11T09:51:03Z 1992-10
dc.identifier.citation Proceedings of the IEEE-SP International Symposium . Time-Frequency and Time-Scale Analysis, 1992., Issue Date : 4-6 Oct 1992 On page(s): 87 en_US
dc.identifier.isbn 0-7803-0805-0
dc.description This paper shows that that a substantial improvement in resolution may be achieved by using the adaptive spectrogram. (The most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated). en_US
dc.description.abstract Aspects of generating spectrograms which may be used in the preliminary steps of time-frequency analysis are discussed. It is shown that the major problem with the application of the spectrogram is its nonunique nature, i.e., the use of an arbitrary window for analysis. The concept of window matching is introduced, whereby the selection of the window used for analysis depends on the instantaneous signal characteristics at the given time-frequency point under analysis. Generalized instantaneous parameters are derived and subsequently used to demonstrate how the window matching may be applied. An adaptive window-matched spectrogram is generated. Practical data results are given. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject adaptive spectrogram en_US
dc.subject adaptive window-matched spectrogram en_US
dc.subject iterative algorithms en_US
dc.subject instantaneous parameters en_US
dc.subject signal characteristics en_US
dc.subject time-frequency analysis en_US
dc.subject time-frequency plane en_US
dc.subject window matching en_US
dc.subject instantaneous frequency en_US
dc.subject time-frequency distributions en_US
dc.title Window matching in the time-frequency plane and the adaptive spectrogram en_US
dc.type Article en_US

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