在未知方向发射信号，由接收阵元接收。对接收的信号使用MUSIC算法处理，得到发射信号方位-process the signals received using MUSIC to get the DOA

matlab 基本语音处理，可以实现基本音乐的输入，并做傅里叶变换进行频谱分析-matlab basic speech processing, can achieve basic music input, and to do Fourier transform spectrum analysis