Weiss, Stephan (2002) Analysis and fast implementation of oversampled modulated filter banks. In: Mathematics in signal processing V. Institute of Mathematics and ITS applications conference series . Clarendon Press, Oxford, pp. 263-274. ISBN 0198507348
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
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.
| Item type: | Book Section |
|---|---|
| ID code: | 32758 |
| Keywords: | oversampled filter banks , filter banks, acoustic echo cancellation, fast implementation, analysis, oversampled, modulated filter banks, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Engineering > Electronic and Electrical Engineering |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 31 Aug 2011 14:54 |
| Last modified: | 23 Jul 2012 16:10 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/32758 |
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