The system type indicates what order of input signals can the given system track" with zero steady state error. The order here refers to the power of s in the laplace transform of the input signal To see this, we will investigate the steady state error of various system types due to impulse r(s=l, step r(s=1/s, ramp r(s)=1/52 and acceleration R(s)=1/s3 inputs 糸统类型表明什么阶次的输入信号能为糸统无稳态误 差的跟踪。这里的阶次引用的是 Laplace变换中输入信 号的幂次。 为了看清这一点,我们来观察由输入信号为脉冲R(s)=1, 阶跃R()=1/s,斜坡R(s)=1/32和加速度R(s)=1/3时,不 同糸统的稳态误差。The system type indicates what order of input signals can the given system “track” with zero steady state error. The “order” here refers to the power of s in the Laplace transform of the input signal. To see this, we will investigate the steady state error of various system types due to impulse R(s)=1, step R(s)=1/s, ramp R(s)=1/s 2 and acceleration R(s)=1/s 3 inputs. 系统类型表明什么阶次的输入信号能为系统无稳态误 差的跟踪。这里的阶次引用的是Laplace变换中输入信 号的幂次。 为了看清这一点，我们来观察由输入信号为脉冲R(s)=1, 阶跃R(s)=1/s, 斜坡R(s)=1/s 2 和加速度R(s)=1/s 3 时，不 同系统的稳态误差