2008, English, Article edition: On the concept of time-frequency distributions based on complex-lag moments Gottin, Bertrand; Ioana, Cornel; Stankovic, Srdjan; ...

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Bookmark: http://trove.nla.gov.au/version/206114
Physical Description
  • text
Published
  • HAL - CCSD
  • 2008
Language
  • English

Edition details

Title
  • On the concept of time-frequency distributions based on complex-lag moments
Author
  • Gottin, Bertrand
  • Ioana, Cornel
  • Stankovic, Srdjan
  • Stankovic, Ljubisa
  • Chanussot, Jocelyn
Published
  • HAL - CCSD
  • 2008
Physical Description
  • text
Subjects
Notes
  • The instantaneous frequency law is an important tool for the analysis of time-frequency content of a signal. Generally, the analyzed signals are composed of several time-frequency components characterized by various non-linear contents. To deal with the nonlinearity of time-frequency content, several time-frequency distributions have been proposed, mainly based on warping techniques. Recently, we introduced the time-frequency distributions based on complex-lag arguments. Its property to strongly reduce, in the case of a single component, the inner interferences due to the time-frequency non-linearity has been shown. In this paper we prove its capabilities to deal with multi-component signals. This property is achieved by an appropriate combination of complex-lag moments computed for different complex lags sets. Numerical examples prove the benefits of the concept defined in this paper.
  • HAL:hal-00326336, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00326336/​en/​
Language
  • English
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