基 于 虚 拟 误 差 传 感 的 大 尺 度 空 间有 源 降 噪 性 能 研 究

Hai Dai, Ke An Chen, Rong Li, Hao Xin Yu

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Aimed at the problem of limited placement of error microphones in large-scale spatial active noise reduction systems, this paper used the virtual error sensing technology to place multiple virtual error microphones in the noise reduction target area, and transferred the quiet zones from the physical error microphone points to the virtual error microphone points,expanded the range of the quiet zones in the noise reduction target area. In order to analyze and study the noise reduction performance and influ⁃ encing factors,the principle and algorithm of multi-channel virtual error sensing were given first,and then the noise reduction per⁃ formance and the number and placement of physical and virtual error microphones ware simulated and analyzed. Finally,the noise reduction performance and influencing factors were verified experimentally in a model cabin of a turboprop aircraft. The simulation and experimental results show that the used virtual error sensing was beneficial to increase the average noise reduction and quiet zone of the target noise reduction area,the placement of the physical and virtual error microphones directly affects the distribution of the quiet zones,a reasonable number and placement of physical and virtual error microphones can expand the quiet zones to cov⁃ er the noise reduction target area 100%,and the optimal number of error microphones was related to the noise frequency character⁃ istics of the primary sound field.

投稿的翻译标题Performance of active noise reduction in large-scale space based on virtual error sensing
源语言繁体中文
页(从-至)677-685
页数9
期刊Zhendong Gongcheng Xuebao/Journal of Vibration Engineering
37
4
DOI
出版状态已出版 - 4月 2024

关键词

  • active noise control
  • error microphone
  • quiet zone
  • spatial noise reduction
  • virtual error sensing

指纹

探究 '基 于 虚 拟 误 差 传 感 的 大 尺 度 空 间有 源 降 噪 性 能 研 究' 的科研主题。它们共同构成独一无二的指纹。

引用此