RESEARCH OF ACTIVE CONTROL BASED ON TWO KINDS OF ACOUSTIC SEPARATION METHODS

摘要：

　　The effect of traditional passive sound absorption material on low-frequency sound waves is limited.So, the active control method is put forward to eliminate the echo of low-frequency.But in the sound field, the incident wave and the reflected wave are superimposing together, we need to isolate the incident wave and the reflected wave in order to control the reflected wave.In this paper, we present two methods of isolating the incident wave and the reflected wave in the sound fields, the two methods are double-pressure sensor method and pressure-velocity sensor method.And the two kinds of acoustic separation methods are used to simulate and analyze the active control of reflected wave.

关键词： Acoustic separation Double-pressure sensor Pressure-velocity sensor Active control

作者: Shu-shu SI Qing HU

作者单位: National Key Laboratory of Science and Technology on Sonar Hangzhou Applied Acoustics Research Institute, Hangzhou, P.R.China, 310012

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 46-49

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）