Frames adapted to a phase-space cover

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Abstract

We construct frames adapted to a given cover of the time-frequency or time-scale plane. The main feature is that we allow for quite general and possibly irregular covers. The frame members are obtained by maximizing their concentration in the respective regions of phase-space. We present applications in time-frequency, wavelet and Gabor analysis.
Original languageEnglish
Pages (from-to)445 - 484
Number of pages40
JournalConstructive Approximation: an international journal for approximations and expansions
Volume39
Issue number3
DOIs
Publication statusPublished - Jun 2014

Austrian Fields of Science 2012

  • 1010 Mathematics

Keywords

  • Frame
  • Localization operator
  • Phase-space
  • Short-time Fourier transform
  • Time-frequency analysis
  • Time-scale analysis

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