有源噪声控制中误差通道的自适应建模  

The Adaptive Modeling of the Error Path in Active Noise Control

作　　者：蒋威[1] 唐健[1] 秦素梅[1] 

机构地区：[1]沈阳工业学院自动化研究所,辽宁沈阳110015

出　　处：《沈阳工业学院学报》2003年第2期19-21,共3页Journal of Shenyang Institute of Technology

摘　　要：有源噪声控制中误差通道对系统的性能有重要的影响 ,实现自适应控制算法必须得到误差通道的传递函数 .本文对系统的误差通道采用自适应建模的方法 ,并提出了自适应建模的过程及算法 .仿真实验证明 ,系统改善了稳定性、提高了降噪量 。The important effect of the error path on the performance of the system exists in the active noise control, and the adaptive algorithm is achieved through the transfer function of the error path. The adaptive modeling is applied to the error path of the system in this paper, then the process and the algorithm of the adaptive modeling are given. The results of simulation experiments indicate that the stability is improved and the attenuation level is increased and the convergence speed is faster for the system.

关 键 词：有源噪声控制 误差通道 自适应滤波 “滤波-X LMS算法” 声波 干涉 模型 自适应建模 

分 类 号：TB535[理学—物理] O241[理学—声学]