科研之友
微信
新浪微博
Facebook
分享链接
摘要
Snowmobile manufacturers invest important efforts to reduce the noise emission of their products. The noise sources of snow-mobiles are multiple and closely spaced, leading to difficult source separation in practice. In this study, source imaging results for snowmobile pass-by noise are discussed. The experiments involve a 193-microphone Underbrink array, with synchronization of acoustic with video data provided by a high-speed camera. Both conventional beamforming and Clean-SC deconvolution are implemented to provide noise source maps of the snowmobile. The results clearly reveal noise emission from the engine, exhaust, and track depending on the frequency range considered.
- 出版日期2017-2
