对于初学者具有参考意义，包含位置式PID算法、积分分离式PID，是机器学习的例程，外文资料里面的源代码，给出接收信号眼图及系统仿真误码率，预报误差法参数辨识-松弛的思想。- For beginners with a reference value, It contains positional PID algorithm, integral separate PID, Machine learning routines, Foreign materials inside the source c