中文说明：
采用卡尔曼滤波器的PID控制。控制干扰信号与测量噪声信号幅值均为0.002的白噪声信号。采用滤波器是控制效果明显改善。
English Description：
PID control using Kalman filter. White noise signal with amplitude of 0.002 for both control interference signal and measurement noise signal. The control effect is obviously improved by using filter