Control system with 4 poles
Can you help me compare these results? They're the simulations of a control system. When we change the poles, (in this case, there are 4 poles), the response system also changes. The 4 poles involves complex numbers, but I don't see the relationship between the poles and the response. I don't see an exact description. I mean, a description like:
if the real number is increased, then the response would be more oscillatory or if the imaginary part is smaller, then the faster the convergence to 0.
Help, please?
Here are the pictures of the 3 different results:
