A New Method for Online Secondary Path Modeling and Reducing Noise in Multi Channel ANC Systems
Several approaches have been introduced for online secondary path modeling (SPM) in single- channel feedforward ANC systems. In these systems additive random noise is injected to achieve secondary path modeling during online operation. This paper investigates the issue of reducing noise and secondary path modeling in multichannel active noise control by not continually injection of white noise during system operation and it uses the advantages of white noise with larger variance to model the secondary path, but the injection is stopped at the optimum point to increase the performance of the system. The existing methods in multi channel have concentrated on online secondary path modeling but in this paper is shown that the proposed method has better performance in reducing residual noise and also it has better convergence rate in online secondary path modeling.
ANC Multichannel
Sekineh Gholinezhad Mohammad Reza Karami
Faculty of Electrical and Computer Engineering, Babol University of technology, P.O.Box.484, Babol, Faculty of Electrical and Computer Engineering, Babol University of technology P.O.Box.484, Babol, I
国际会议
海口
英文
348-352
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）