I've got the next transfer function:
$$ \frac{\hat{\alpha}}{\hat{\alpha_{ref}}} =\frac{w_n^2}{s^2+2w_n \xi s+ w_n^2} $$
Now I want to draw a step response input at height of \$\alpha_{ref}\$, where \$\xi\$ comes with differing values (i.e different graphs on the same axis for different values of \$\xi\$, and the value of \$w_n\$ depends on \$\xi\$).
How to implement this in Matlab?
Thanks in advance.
Best Answer
A not-at-all elegant way to do it is: