专家控制 求二阶传递函数的阶跃响应 G(s)=133/(s^2+25s),取采样时间为1ms进行离散化。设计专家PID控制器，并进行Matlab仿真。(Expert control Find the step response of the second-order transfer function G(s)=133/(s^2+25s), and take the sampling time as 1ms for discretization. Design expert PID contro