### 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 |

### Fingerprint

### Keywords

- oversampled filter banks
- filter banks
- acoustic echo cancellation
- fast implementation
- analysis
- oversampled
- modulated filter banks

### Cite this

*Mathematics in signal processing V*(pp. 263-274). (Institute of Mathematics and ITS applications conference series; No. 71). Oxford.

}

*Mathematics in signal processing V.*Institute of Mathematics and ITS applications conference series, no. 71, Oxford, pp. 263-274, 5th International Conference on Mathematics in Signal Processing, University of Warwick, United Kingdom, 18/12/00.

**Analysis and fast implementation of oversampled modulated filter banks.** / Weiss, Stephan.

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 -