Nonlinear Neural System for Active Noise Controller to Reduce Narrowband Noise

Minh-Canh Huynh, Cheng-Yuan Chang, Zhao Kang
2021 Mathematical Problems in Engineering  
Noise in a dynamic system is practically unavoidable. Today, such noise is commonly reduced using an active noise control (ANC) system with the filtered-x least mean square (FXLMS) algorithm. However, the performance of the ANC system with FXLMS algorithm is significantly impaired in nonlinear systems. Therefore, this paper develops an efficient nonlinear adaptive feedback neural controller (NAFNC) to eliminate narrowband noise for both linear and nonlinear ANC systems. The proposed controller
more » ... s implemented to update its coefficients without prior offline training by neural network. Hence, the proposed method has rapid convergence rate as confirmed by simulation results. The proposed work also analyzes the stability and convergence of the proposed algorithm. Simulation results verify the effectiveness of the proposed method.
doi:10.1155/2021/5555054 fatcat:jrmnba7txrd53hqjcxrpxxyjea