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Transition kernels for bilinear time-frequency distributions

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1 Author(s)
White, L.B. ; Defence Sci. & Technol. Organ., Salisbury, SA, Australia

The author proposes a sequence of time-frequency signal representations which offer a continuous transition from time smoothed pseudo-Wigner-Ville distributions (PWVD) to a specified class of positive representations. This allows the selection of a representation which offers the desired tradeoff between the inherent localization properties of the PWVD and the lack of interference terms present in the class of positive representations, a cause of some criticism of the method. The sequence converges uniformly to the specified positive distribution

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Signal Processing, IEEE Transactions on  (Volume:39 ,  Issue: 2 )