Pseudo affine Wigner distributions: definition and kernelformulation
Goncalves, P.; Baraniuk, R.G.
Signal Processing, IEEE Transactions on
Volume 46, Issue 6, Jun 1998 Page(s):1505 - 1516
Digital Object Identifier   10.1109/78.678464
Summary:We introduce 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-scale 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-scale distributions (TSDs), we introduce and study an alternative set of generators for this class

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