1
vote
0answers
36 views

Bode plot of an unstable system?

I am a bit confused on how to sketch a bode plot for an unstable system? (being a/all pole(s) lies on RHP). I tried plotting it in matlab, but it doesn't resemble the output i was expecting using ...
0
votes
0answers
36 views

MATLAB plotting issue

I posted this question on StackOverflow, but did not get any answers, so hopefully this will work better. Is anyone familiar with plotting in the Matlab SISOtool? For some reason, I cannot access the ...
1
vote
1answer
95 views

Find the maximal switching period that ensures asymptotic stability of the switching system.

I have a time-dependent switched system $\mathbf{\dot{x}} = \mathbf{A}_i\mathbf{x}$. With $$\mathbf{A}_1 = \begin{bmatrix} -0.5 & 1 \\ 100 & -1 \end{bmatrix} \quad \mathbf{A}_2 = ...
1
vote
2answers
475 views

Approximated Laplace transform of a non-linear system

Assume a system with dynamics: $\dot{\omega}(t) = \alpha \omega^2(t) + \beta i(t)$, where $\dot{\omega}(t), \omega(t)$ are system's states and $i(t)$ is the system's input. I'd like to approximate ...
-2
votes
1answer
501 views

What is the input of Lyapunov function?

I am not sure whether I declare a correct type of matrix in matlab, but it can run. Is it a correct way to derive Lyapunov function? Y is a $3\times3$ matrix. According to the paper ...