摘要
基于空间移动的标准点声源设计,建立声源定位系统动态校准装置。提出空气声声源定位系统动态校准方法,获得声源定位系统动态定位实验测量结果,分析影响动态定位结果的主要因素,并进行测量结果不确定度的评定。为车辆通过噪声源定位、飞行器飞行中噪声源定位的实验室动态校准提供了计量技术支撑。
Based on the design of standard point sound source which can be moved in space,a dynamic calibration device for sound source localization system was established.Dynamic characteristics evaluated methods of the airborne sound source location system were put forward,ex-periment results were acquired and main influences were analyzed.Uncertainties of calibration results were evaluated.It provides metrological technical support for the lab calibration of dynamic characteristics of sound source localization system using in automobile and aero vehicle move-ment noise identification.
作者
张炳毅
付强
徐佳
张宁宁
ZHANG Bingyi;FU Qiang;XU Jia;ZHANG Ningning(Changcheng Institute of Measurement and Metrology,Beijng 100095,China)
出处
《计测技术》
2019年第5期51-54,共4页
Metrology & Measurement Technology
基金
国家计量技术基础科研项目(MJJ201332)
关键词
声源定位
动态特性
方法研究
sound source location
dynamic characteristics
lab calibration
