Abstract
| Language | English |
|---|---|
| Title of host publication | Mathematics in signal processing V |
| Editors | John G. McWhirter, Ian K. Proudler |
| Place of Publication | Oxford |
| Pages | 263-274 |
| Number of pages | 12 |
| Publication status | Published - 1 Jul 2002 |
| Event | 5th International Conference on Mathematics in Signal Processing - University of Warwick, United Kingdom Duration: 18 Dec 2000 → 20 Dec 2000 |
Publication series
| Name | Institute of Mathematics and ITS applications conference series |
|---|---|
| Publisher | Clarendon Press |
| No. | 71 |
Conference
| Conference | 5th International Conference on Mathematics in Signal Processing |
|---|---|
| Country | United Kingdom |
| City | University of Warwick |
| Period | 18/12/00 → 20/12/00 |
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Keywords
- oversampled filter banks
- filter banks
- acoustic echo cancellation
- fast implementation
- analysis
- oversampled
- modulated filter banks
Cite this
}
Analysis and fast implementation of oversampled modulated filter banks. / Weiss, Stephan.
Mathematics in signal processing V. ed. / John G. McWhirter; Ian K. Proudler. Oxford, 2002. p. 263-274 (Institute of Mathematics and ITS applications conference series; No. 71).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
TY - GEN
T1 - Analysis and fast implementation of oversampled modulated filter banks
AU - Weiss, Stephan
PY - 2002/7/1
Y1 - 2002/7/1
N2 - Oversampled modulated filter banks (OSFBs) are popularly employed for a number of applications such as acoustic echo cancellation in order to reduce the processing complexity of a signal processing algorithm. Hence, an efficient implementation of OSFBs themselves is mandatory. In this paper, a polyphase description is used to remove redundancies in the filter operations and to factorize the OSFB into filter components depending on the prototype filter, and the modulating transform. Based on a state-space representation of this derived polyphase factorization, signal flow graphs can be obtained which permit a very simple and efficient OSFB implementation. The analysis is performed for a number of different classes of OSFBs, and a comparison to existing methods is drawn.
AB - Oversampled modulated filter banks (OSFBs) are popularly employed for a number of applications such as acoustic echo cancellation in order to reduce the processing complexity of a signal processing algorithm. Hence, an efficient implementation of OSFBs themselves is mandatory. In this paper, a polyphase description is used to remove redundancies in the filter operations and to factorize the OSFB into filter components depending on the prototype filter, and the modulating transform. Based on a state-space representation of this derived polyphase factorization, signal flow graphs can be obtained which permit a very simple and efficient OSFB implementation. The analysis is performed for a number of different classes of OSFBs, and a comparison to existing methods is drawn.
KW - oversampled filter banks
KW - filter banks
KW - acoustic echo cancellation
KW - fast implementation
KW - analysis
KW - oversampled
KW - modulated filter banks
UR - http://www.oup.com.au/titles/academic/maths/9780198507345
M3 - Conference contribution book
SN - 0198507348
T3 - Institute of Mathematics and ITS applications conference series
SP - 263
EP - 274
BT - Mathematics in signal processing V
A2 - McWhirter, John G.
A2 - Proudler, Ian K.
CY - Oxford
ER -