包括调制，解调，信噪比计算，通过虚拟阵元进行DOA估计，时间序列数据分析中的梅林变换工具，实现串口的数据采集，应用小区域方差对比，程序简单。- Includes the modulation, demodulation, signal to noise ratio calculation, Conducted through virtual array DOA estimation, Time series data analysis Mellin transform tool, Achieve serial data acquisition, Application of small area variance comparison, simple procedures.