- #1
Ortix
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Homework Statement
I have to draw the step response of the following two systems.
G1 = (4+3s)/(s^2+4s+4)
G2 = 3/(s^2+4s+4)
So I started to draw the step response of the second system first. It has to be in the funky standard form:
[itex]
\frac{ω2}{s2 + 2ζωs + ω2}
[/itex]
EDIT:
Seems like the above doesn't work..
(ω2)/(s2 + 2ζωs + ω2)
Problem is that 4 =/= 3 ;) So I'm not sure how to go about fixing that..
Furthermore, I have NO idea how to even do the first system, G1.
In the solutions they just wrote the following:
G1 has a slight overshoot due to the zero at -4/3
4/(s^2+4s+4) + 3s/(s^2+4s+4)
That is exactly what they wrote. Now I'm curious as to WHY there is an overshoot just because the zero is -4/3? What is the definition for that?
So how would I go about solving this problem?
Thanks!