A multi-channel ADDA controller is used in many active noise cancellation and active vibration control problems. Such a con- troller is able to yield good performance, however it also requires a lot of hardware on a centralized place and a lot of sensitive wiring. A practical work around for this problem would be to use a local single channel controller. However such a controller would reduce the overall system performance and may introduce instability. In this paper a system will be presented that acts as a hybrid form and combines the performance of a local feedback loop with a large multi-channel controller. To reduce the wiring and the influence of disturbances on this wiring a local analog to digital and digital to analog converter will be used. These systems will be interconnected using a high-speed serial com- munication system. To reduce the sample rate for the overall system, a local decimation and interpolation filter will be imple- mented. Further performance improvements will be realized by means of a simple local feedback system. The implementation issues concerning such a system are the subject of this paper.
|Publisher||Technische Universiteit Eindhoven|
|Workshop||Ninth International Workshop on Acoustic Echo and Noise Control, IWAENC 2005|
|Period||12/09/05 → 15/09/05|
|Other||12-15 September 2005|
- EC Grant Agreement nr.: FP6/501084