移动声源运动轨迹测定方法研究  

Measuring method of moving trace of sound

作　　者：曹虎林[1] 邓瑞[1] 应忍冬[1] 周玲玲[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《信息技术》2011年第5期45-48,共4页Information Technology

摘　　要：建立了测定移动声源运动轨迹的时间窗测定模型,给出了当声源信号为单一频率正弦信号时的声源运动轨迹计算方法,并利用MATLAB对时间窗测定模型进行仿真,仿真结果显示该模型可以很好的测定移动声源的运动轨迹,进而给出不同的模型参数对测定结果的影响曲线。最后分析了时间窗模型的实时性,得出该模型满足实时性要求。Time window model is built to measure the moving trace of sound.And the computing method is given when the sound is the sine signal with single frequency.Time window model is simulated with MATLAB.The simulating result tells that this model is very good at measuring the moving trace of sound.After the simulation,several influence curves about different model parameters on the measurement results are given.In the last,it analyzes the real-time property of time window model and makes a conclusion.

关 键 词：移动声源定位 时间窗模型 相位差测量 

分 类 号：TP399[自动化与计算机技术—计算机应用技术]