### Abstract

Language | English |
---|---|

Title of host publication | Signal Processing IX Theories and Applications |

Subtitle of host publication | Proceedings of Eusipco-98, Ninth European Signal Processing Conference |

Pages | 1245-1248 |

Number of pages | 4 |

Publication status | Published - 1998 |

Event | 9th European Signal Processing Conference - Rhodes, Greece Duration: 8 Sep 1998 → 11 Sep 1998 |

### Conference

Conference | 9th European Signal Processing Conference |
---|---|

Country | Greece |

City | Rhodes |

Period | 8/09/98 → 11/09/98 |

### Fingerprint

### Keywords

- subband adaptive filters
- performance limitations
- modulated filter bank

### Cite this

*Signal Processing IX Theories and Applications: Proceedings of Eusipco-98, Ninth European Signal Processing Conference*(pp. 1245-1248)

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*Signal Processing IX Theories and Applications: Proceedings of Eusipco-98, Ninth European Signal Processing Conference.*pp. 1245-1248, 9th European Signal Processing Conference, Rhodes, Greece, 8/09/98.

**Performance limitations of subband adaptive filters.** / Weiss, Stephan; Stewart, Robert; Stenger, Alexander; Rabenstein, Rudolf.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

TY - GEN

T1 - Performance limitations of subband adaptive filters

AU - Weiss, Stephan

AU - Stewart, Robert

AU - Stenger, Alexander

AU - Rabenstein, Rudolf

PY - 1998

Y1 - 1998

N2 - In this paper, we evaluate the performance limitations of subband adaptive filters in terms of achievable final error terms. The limiting factors are the aliasing level in the subbands, which poses a distortion and thus presents a lower bound for the minimum mean squared error in each subband, and the distortion function of the overall filter bank, which in a system identification setup restricts the accuracy of the equivalent fullband model. Using a generalized DFT modulated filter bank for the subband decomposition, both errors can be stated in terms of the underlying prototype filter. If a source model for coloured input signals is available, it is also possible to calculate the power spectral densities in both subbands and reconstructed fullband. The predicted limits of error quantities compare favourably with simulations presented.

AB - In this paper, we evaluate the performance limitations of subband adaptive filters in terms of achievable final error terms. The limiting factors are the aliasing level in the subbands, which poses a distortion and thus presents a lower bound for the minimum mean squared error in each subband, and the distortion function of the overall filter bank, which in a system identification setup restricts the accuracy of the equivalent fullband model. Using a generalized DFT modulated filter bank for the subband decomposition, both errors can be stated in terms of the underlying prototype filter. If a source model for coloured input signals is available, it is also possible to calculate the power spectral densities in both subbands and reconstructed fullband. The predicted limits of error quantities compare favourably with simulations presented.

KW - subband adaptive filters

KW - performance limitations

KW - modulated filter bank

UR - http://www.eurasip.org/Proceedings/Eusipco/Eusipco1998/main.pdf

M3 - Conference contribution book

SN - 789607620071

SP - 1245

EP - 1248

BT - Signal Processing IX Theories and Applications

ER -