Abstract
This paper presents an algorithm for broadband active noise control, using a modified version of the filtered-error algorithm with frequency domain decoupling and preconditioning. The decoupling is done efficiently in the frequency domain without regard to causality, but the decoupling transfer functions can be made causal by adding a delay. The influence of this delay on the speed of convergence is eliminated by using the modified version of the filtered-error scheme. The control effort is reduced by adding a regularization part which is consistent with the decoupling approach. The system can be used for multiple error signals, multiple secondary sources, and multiple references. This paper presents simulations of the behavior of the algorithm based on acoustic transfer functions and signals, showing that the frequency domain decoupling approach using the delay compensation technique increases the speed of convergence.
| Original language | English |
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| Title of host publication | Proceedings of ISMA 2022 - International Conference on Noise and Vibration Engineering and USD 2022 - International Conference on Uncertainty in Structural Dynamics |
| Editors | W. Desmet, B. Pluymers, D. Moens, S. Neeckx |
| Publisher | Katholieke Universiteit Leuven |
| Pages | 155-161 |
| Number of pages | 7 |
| ISBN (Electronic) | 9789082893151 |
| Publication status | Published - 2022 |
| Event | 30th International Conference on Noise and Vibration Engineering, ISMA 2022 - Leuven, Belgium Duration: 12 Sept 2022 → 14 Sept 2022 Conference number: 30 |
Conference
| Conference | 30th International Conference on Noise and Vibration Engineering, ISMA 2022 |
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| Abbreviated title | ISMA 2022 |
| Country/Territory | Belgium |
| City | Leuven |
| Period | 12/09/22 → 14/09/22 |
| Other | Organised in conjunction with the 9th International Conference on Uncertainty in Structural Dynamics (USD2022) |