文章摘要
任辉,黎中伟,吴亚锋,李江红.主动噪声控制声学通道的实验辨识[J].,1997,16(3):36-40
主动噪声控制声学通道的实验辨识
The experimental identification of the acoustic channel in active noise control
  
中文摘要:
      传统的自适应滤波器不能直接用于主动噪声控制(ANC),因为扬声器和误差传声器之间的声学通道可能使系统不稳定.本文根据声学通道的相位特性,建立补偿滤波器,提出了用实验方法辨识声学通道传输特性.在房间实验中研究了单通道相位因子的变化特性,并进一步用于飞机舱内多通道主动噪声控制,给出了相应的实验结果.
英文摘要:
      The usual adaptive filter can not be directly used in an active noise control system because there is an acoustic channel between the loudspeaker and the error microphone, and this acoustic channel will enable the system unstable. Based on the phase characteristic of the acoustic channel, we propose a method such that the transmission characteristic of the acoustic channel can be identified experimently. In room test, the errors of phase factor of a single channel are studied. The method is further applied to the active noise control in the cabin of an aircraft, and the test results are given.
DOI:10.11684/j.issn.1000-310X.1997.03.008
中文关键词: 主动噪声控制  辨识  LMS算法
英文关键词: Active noise control  Identification  LMS algorithm
基金项目:
作者单位
任辉 西北工业大学!西安
710072 
黎中伟 西北工业大学!西安
710072 
吴亚锋 西北工业大学!西安
710072 
李江红 西北工业大学!西安
710072 
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