噪声与振动控制

›› 2010, Vol. 30 ›› Issue (4): 18-21.DOI: 10.3969/j.issn.1006-1355.2010.04.005

• 振动理论与数值解法 • 上一篇    下一篇

《发动机排气噪声主动控制的LMS算法仿真研究》

张响，陆森林

  

  1. （江苏大学汽车学院，江苏镇江212013）
  • 收稿日期:2009-10-19 修回日期:1900-01-01 出版日期:2010-08-18 发布日期:2010-08-18
  • 通讯作者: 张响

《Simulation of Active Noise Control of Engine Exhaust Based on LMS Algorithm》

ZHANG Xiang,LU Sen-lin   

  1. (School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang，Jiangsu212013, China)
  • Received:2009-10-19 Revised:1900-01-01 Online:2010-08-18 Published:2010-08-18
  • Contact: ZHANG Xiang

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摘要： 发动机排气噪声有源控制算法有多种，不同的算法因其复杂程度不同实际的控制效果也不一样。为了找到一种更有效的控制算法，用MATLAB建立Simulink仿真模型对LMS算法进行仿真，从仿真效果判断出在误差通道客观存在的情况下LMS算法的局限性并对LMS算法进行了改进，取得了较好的控制效果。

关键词: 声学, 主动控制, LMS算法, MATLAB, 仿真

Abstract: There are various active noise control algorithms for engine exhaust noise simulation. However, their control effects are different due to the different complexities. To find out a more effective control algorithm, a simulink model for simulation of noise control of an engine exhaust is established using MATLAB code, and the simulation is done based on the LMS algorithm. From the simulation, the limitation of the LMS algorithm is evaluated in the case that the error acoustic path exists, and the LMS algorithm is improved for better control effect.

Key words: acoustics, adaptive control, LMS algorithm, MATLAB, simulation

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