Journal article
Signal compression by subband coding
Automatica (Oxford), Vol.35(12), pp.1895-1908
1999
DOI: 10.1016/S0005-1098(99)00126-0
Abstract
This is a survey/tutorial paper on data compression using the technique of subband coding. This is widely used in practice, for example, in the MPEG audio coder. A subband coder has two main components: a filter bank that decomposes the source into components, usually with respect to defined frequency bands; and a bank of quantizers. Without the quantizers, the subband coder–decoder is a linear periodically time-varying discrete-time system, and hence falls into the class of multirate digital signal processing systems. The paper reviews the theory of such systems, studies the perfect reconstruction problem and a variant of it, reviews subband coding theory for a stationary input signal, and describes recent work for cyclostationary signals.
Details
- Title: Subtitle
- Signal compression by subband coding
- Creators
- Bruce Francis - Electrical and Computer Engineering Department, University of Toronto, Toronto, Canada M5S 1A4Soura Dasgupta - Electrical and Computer Engineering Department, University of Iowa, IA, USA
- Resource Type
- Journal article
- Publication Details
- Automatica (Oxford), Vol.35(12), pp.1895-1908
- Publisher
- Elsevier Ltd
- DOI
- 10.1016/S0005-1098(99)00126-0
- ISSN
- 0005-1098
- eISSN
- 1873-2836
- Language
- English
- Date published
- 1999
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984083260302771
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