利用matlab GUI实现的串口编程例子，进行逐步线性回归，借鉴了主成分分析算法（PCA），通过虚拟阵元进行DOA估计，IMC-PID是利用内模控制原理来对PID参数进行计算。- Use serial programming examples matlab GUI implementation, Stepwise linear regression, It draws on principal component analysis algorithm (PCA), Conducted through virtual array DOA estimation, The IMC- PID is using the internal model control principle for PID parameters is calculated.