移动声源运动轨迹测定方法研究

Measuring method of moving trace of sound

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.