Arbitrary Tilings of the Time-Frequency Plane Using Local Bases

Riccardo Bernardini, Jelena Kovacevic

Research output: Contribution to journalArticlepeer-review


We show how to obtain arbitrary tilings of the timefrequency plane using local orthogonal bases. These bases were recently constructed as a generalization of the cosine-modulated filter banks in discrete time and local trigonometric bases in continuous time. Due to the fact that they use a single prototype window, these bases also lead to time-varying tilings. Moreover, they have a fast implementation algorithm and allow for multidimensional irreducible basis functions. We show examples of design, in particular, that of a critical-band system for use in audio coding.

Original languageEnglish (US)
Number of pages1
JournalIEEE Transactions on Signal Processing
Issue number5
StatePublished - 1996

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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