Title :
An Analogue Compensation Scheme in Adaptive Active Control System with Significant Secondary Path Variation
Author :
Ying Song ; Wendong Xiao ; Xiang Chen
Author_Institution :
Inst. for Infocomm Res., Singapore
Abstract :
Online secondary path modeling is used to deal with varying secondary path in active control systems. However, instability may happen when there is fast "significant" changing due to the tracking speed limitation of online secondary path modeling. In this paper a scheme involving analogue compensator is proposed to be used in the secondary path with fast "significant" changing. The function of the analogue compensator is analyzed and the guideline for design is given. Simulations have been carried out to compare the performance of the proposed scheme and the existing online secondary path modeling approach. The result shows that the proposed scheme is more effective for fast "significant" secondary path variation.
Keywords :
adaptive control; adaptive filters; filtering theory; adaptive active control system; analogue compensation scheme; online secondary path modeling; secondary path modeling; speed limitation tracking; Active noise reduction; Adaptive control; Adaptive filters; Adaptive systems; Control system synthesis; Control systems; Feedforward systems; Guidelines; Programmable control; Transfer functions; FxLMS; active control; adaptive filter; online secondary path modeling;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366626