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General form of time–frequency distribution with complex-lag argument

General form of time–frequency distribution with complex-lag argument

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A general form of the time–frequency distribution with complex-lag argument is proposed. It is based on the generalised complex-lag distribution, modified to provide an efficient instantaneous frequency estimation in the case of multicomponent signals. The form of proposed distribution is suitable for numerical realisation and it provides an arbitrarily high distribution concentration. The theory is illustrated by an example.

Inspec keywords: time-frequency analysis; frequency estimation; signal processing

Other keywords: time-frequency distribution; multicomponent signals; complex-lag distribution

Subjects: Signal processing and detection; Other topics in statistics; Other topics in statistics; Signal processing theory

References

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      • Morelande, M., Senadji, B., Boashash, B.: `Complex-lag polynomial Wigner-Ville distribution', Proc. IEEE Speech and Image Technologies for Computing and Telecom., December 1997, 1, p. 43–46.
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    6. 6)
      • S. Stanković , L.J. Stanković . Introducing time–frequency distribution with a “complex-time” agrument. Electron. Lett. , 14 , 1265 - 1267
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