摘要
发动机排气噪声是宽带噪声。在能够获得参考信号的前提下,采用自适应有源消声(Adaptive active noise control,简称AANC)的前馈控制(Active feedforward control)是有效的方法。为此,在引用Filtered-MS算法的基础上,分别对参考信号的采集和系统识别进行分析,并进行了仿真实验。
Based on obtaining the reference signal in an ANC system, the feedforward control is effective to a bandwidth noise in engine exhaust. This paper analyses the selection of reference signal and the identification of system respectively according to Filtered-LMS algorithm. In the end, the paper designs and makes the simulation test, and draws a conclusion.
出处
《农机化研究》
北大核心
2005年第5期176-178,181,共4页
Journal of Agricultural Mechanization Research
关键词
能源与动力工程
有源消声
模拟实验
Filtered—LMS算法
参考信号
通路识别
逆建模
energy and power engineering
active noise control
simulation investigation
filtered-LMS algorithm
reference signal
system identification
inverse modeling
