多普勒效应的仿真研究

Simulation study of Doppler effect

根据多普勒频移理论,应用MATLAB软件编程,模拟声信号发射与接收的频率变化,通过改变观察者的运动速度、波源的运动速度、以及同时改变两者的运动速度及其方向,观察到了频率移动的相应变化。这种方法作为辅助教学手段,有助于学生更加深刻地理解多普勒频移的特征和规律,提高教学质量。

According to Doppler shift theory,we simulate the frequency variation of acoustic signals transmitting and receiving by using MATLAB program.The frequency shift will change by adjusting the parameter of observers velocity,wave sources velocity,both velocity and direction simultaneously.As an auxiliary teaching way,these will be helpful for students to understand the characteristics of Doppler shift and the law.