Research on the Planar Near-field Acoustic Holography for Cyclostationary Sound Field

摘要：

The conventional planar near-field acoustic holography is not suitable for cyclostationary sound field radiated by the rotating machines. When the cyclic spectral density (CSD), instead of the complex sound pressure, is adopted as reconstructed physical quantity, the modulating wave and carrier wave components of the cyclostationary sound field can be extracted exactly and so the cyclostationary planar near-field acoustic holography (CPNAH) technique was proposed. Simulation and experimental results show that the modulation characteristics of the cyclostationary sound field can be extracted effectively and the sound source can be localized accurately.

关键词： Near-field acoustic holography Cyclic spectral density Cyclostationary sound field Sound source localization

作者: Zhi Min Chen Hai Chao Zhu Rong Fu Mao

作者单位: Institute of Noise and Vibration, Naval University of Engineering, China

会议类型: 国际会议

会议名称: 2011 International Conference on Vibration,Structural Engineering and Measurement(2011年振动、结构工程与测量国际会议 ICVSEM 2011)

会议地点: 上海

会议语种:英文

页码: 164-167

在线出版日期: 2011-10-21（万方平台首次上网日期，不代表论文的发表时间）