Pseudo affine wigner distributions: definition and kernel formulation

Paulo Gonçalvès, Richard G. Baraniuk

Research output: Contribution to journalArticle

Abstract

In this paper we introduce a new set of tools for timevarying spectral analysis: the pseudo affine Wigner distributions. Based on the affine Wigner distributions of J. and P. Bertrand these new time-scale distributions support efficient on-line 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 we extend the definition of this class by introducing the notion of a natural generator.

Original languageEnglish (US)
Number of pages1
JournalIEEE Transactions on Signal Processing
Volume44
Issue number10
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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