机械科学与技术2024，Vol.43Issue(2)：291-296,6.DOI:10.13433/j.cnki.1003-8728.20220305
三维声强与振速波束形成结合的声源识别方法研究
Two Sound Source Separation and Power Calculation Methods Combined with Three-dimensional Sound Intensity and Vibration Velocity Beamforming
摘要
Abstract
Aiming at the problem of separation of two sound sources with the same frequency and calculation of sound power,a sound source recognition method combining three-dimensional sound intensity vector with conventional beamforming technology of particle vibration velocity is proposed,which is used for sound source localization and sound power separation.The particle vibration velocity and the sound intensity value are solved by the sound intensity characteristics;the particle vibration velocity is introduced into the conventional beamforming to locate the sound source;the positioning result is substituted into the nonlinear equation system of sound intensity and sound power to solve the sound power value of each sound source.Experiments in a semi-anechoic chamber show that the sound source positioning method of particle vibration velocity beamforming is feasible,and the error of solving the sound power value is within 5%.关键词
质点振速/三维声强/波束形成/声功率Key words
particle vibration velocity/three-dimensional sound intensity/beamforming/sound power分类
机械制造引用本文复制引用
方夫民,柳小勤,伍星,郭祥..三维声强与振速波束形成结合的声源识别方法研究[J].机械科学与技术,2024,43(2):291-296,6.基金项目
国家自然科学基金项目(51875272) （51875272）
