Arbitrary tilings of the time-frequency plane using local bases

Riccardo Bernardini; Jelena Kovačević

doi:10.1109/78.774773

Arbitrary tilings of the time-frequency plane using local bases

Riccardo Bernardini, Jelena Kovačević

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We show how to design filters given a prescribed tiling of the time-frequency plane. Moreover, we impose on these filters the structure of 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. They have been found to be of considerable practical importance due to their simplicity (all filters are obtained from a single prototype) and low computational complexity. We show examples of design, in particular, that of a critical-band system for use in audio coding.

Original language	English (US)
Pages (from-to)	2293-2304
Number of pages	12
Journal	IEEE Transactions on Signal Processing
Volume	47
Issue number	8
DOIs	https://doi.org/10.1109/78.774773
State	Published - Aug 1999

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering

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10.1109/78.774773

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Arbitrary tilings of the time-frequency plane using local bases

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