一阶系统matlab仿真

一阶系统单位阶跃响应仿真>> num=1;

>> den=[1 1];

>> g=tf(num,den) Transfer function:

1

-----

s + 1

>> step(g)

>> hold on

>> step(tf(1,[2 1]))

>> step(tf(1,[4 1]))

>> step(tf(1,[6 1]))

>> step(tf(1,[8 1]))

>> ltiview

一阶系统斜坡响应仿真

>> t=0:0.02:5;

>> r=t;

>> lsim(g,r,t)

一阶系统单位加速度响应仿真>> r=1/2*t.^2;

>> lsim(g,r,t)