Dominant Pole Localization of FxLMS Adaptation Process in Active Noise Control

摘要：

This paper develops a technique for dominant pole localization of the adaptation process, performed by the FxLMS algorithm in active noise control systems. This development results in a new adaptation algorithm, called Filtered Weight FxLMS (FwFxLMS). Similar to the FxLMS, FwFxLMS uses a recursion for updating the weight vector of a transversal ANC controller. However, in the new algorithm, the weight vector is filtered before being updated by the recursion. This filtering procedure causes dynamic behaviors of the adaptation process to be improved. This improvement can be theoretically proved by plotting and analyzing the root locus of the adaptation process in the z-plane. Also, simulation results show the efficiency of the proposed algorithm in active control of acoustic noise. Acoustic Domain

作者: Iman Tabatabaei Ardekani Waleed H. Abdulla

作者单位: The University of Auckland, Private Bag 92019, Auckland, New Zealand

会议类型: 国际会议

会议名称: 2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)

会议地点: 西安

会议语种:英文

页码: 1-7

在线出版日期: 2011-10-18（万方平台首次上网日期，不代表论文的发表时间）