噪声与振动控制Issue(1)：123-126,4.DOI:10.3969/j.issn.1006-1335.2015.01.025
车内噪声主动控制变步长LMS算法
Active Noise Control for Vehicle Interior Noise Using Variable Incremental Step LMS Algorithm
摘要
Abstract
By analyzing the noise signal sample inside the railway vehicle, the plain LMS algorithm and the LMS algo-rithm with variable-incremental-steps were applied respectively to update the weight vectors in the adaptive filtering based on the steepest descent algorithm. The relation between step factor μ(n) and error signal e(n) is a sinusoidal function in the variable-step LMS algorithm. The adaptive filter was used for active internal noise control for the vehicle. Result shows that the proposed variable-step LMS algorithm can overcome the inherent contradiction in the plain LMS algorithm between al-gorithm convergence speed and steady-state error, and has faster algorithm convergence speed and less steady-state error si-multaneously.关键词
声学/主动控制/变步长LMS算法/车内噪声Key words
acoustics/active control/variable-incremental-step LMS algorithm/vehicle interior noise分类
通用工业技术引用本文复制引用
余荣平,张心光,王岩松,郭辉..车内噪声主动控制变步长LMS算法[J].噪声与振动控制,2015,(1):123-126,4.基金项目
国家自然科学基金项目（51175320）；上海市自然科学基金项目 （）
