Abstract
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 language | English (US) |
|---|---|
| Number of pages | 1 |
| Journal | IEEE Transactions on Signal Processing |
| Volume | 44 |
| Issue number | 5 |
| State | Published - 1996 |
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering