Active noise contral systems for braadband noise reduction require substantial computing power, especially for multichannel systems and adaptive controllers. Furthermore, speed of convergence can be an issue as weil. In this paper, methods and techniques are described that are able to reduce the computational complexity and to improve the speed of convergence. The latter is accomplished by using a control implementation running at multiple sample rates. Decentralised control loops running at high sample rates are efficiently implemented on reconfigurable hardware. For the low to medium sample rates, a full multichannel adaptive control algorithm has been developed that leads to subtantially improved convergence rates at reasonable computational complexity.
|Title of host publication||Conference proceedings - Adaptronic Congress|
|Subtitle of host publication||[23 - 24 May 2007, Göttingen]|
|Place of Publication||Göttingen, Germany|
|Publisher||Adaptronic Congress Veranstaltungs GbR|
|Number of pages||4|
|Publication status||Published - 23 May 2007|
|Event||Adaptronic Congress 2007 - Göttingen, Germany|
Duration: 23 May 2007 → 24 May 2007
|Conference||Adaptronic Congress 2007|
|Period||23/05/07 → 24/05/07|
- EC Grant Agreement nr.: FP6/501084
Berkhoff, A. P., & Wesselink, J. M. (2007). Multichannel active noise control systems and algorithms for reduction on broadband noise. In Conference proceedings - Adaptronic Congress: [23 - 24 May 2007, Göttingen] (pp. 1-4). Göttingen, Germany: Adaptronic Congress Veranstaltungs GbR.