Pseudo affine Wigner distributions
- 21 June 2006
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, 1423-1426
- https://doi.org/10.1109/icassp.1996.543928
Abstract
We define a new set of tools for time-varying spectral analysis: the pseudo affine Wigner distributions. Based on the affine Wigner distributions of J. and P. Bertrand (1992), these new time-frequency distributions support efficient online operation at the same computational cost as the continuous wavelet transform. Moreover, they take advantage of the proportional bandwidth smoothing inherent in the sliding structure of their implementation to suppress cumbersome interference components. To formalize their place within the echelon of the affine class of time-frequency distributions, we extend the definition of this class and introduce other natural generators.Keywords
This publication has 6 references indexed in Scilit:
- A pseudo-Bertrand distribution for time-scale analysisIEEE Signal Processing Letters, 1996
- Geometry of Affine Time–Frequency DistributionsApplied and Computational Harmonic Analysis, 1996
- A method for time-frequency analysisIEEE Transactions on Signal Processing, 1994
- Time-scale energy distributions: a general class extending wavelet transformsIEEE Transactions on Signal Processing, 1992
- A class of affine Wigner functions with extended covariance propertiesJournal of Mathematical Physics, 1992
- Computation of affine time-frequency distributions using the fast Mellin transformPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1992