How to plot Step response of MIMO system

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Hiralben Mistry 2018-11-18

评论： Geetha Madhuri 2019-4-3

I am working on MIMO system with following A,B,C,D matrix.

A=[3 4 -7;5 4 0;-5 -7 10];
B=[1 0;0 0;1 1];
C=[1 1 0;1 0 1];
D=zeros(2,2);
sys_OL=ss(A,B,C,D);
[y_OL,t]=step(sys_OL);

While finding the step response of system, I got the dimension of y_OL as 319 x 2 x 2 double;

How can I plot the output?

Stephan 2018-11-18

编辑：Stephan 2018-11-18

Hi,

if you use:

[y_OL,t]=step(sys_OL);

you get a matrix as result. To directly plot the step response use:

step(sys_OL)

Best regards

Stephan

Stephan 2018-11-18

You can accept useful answers and/or vote for them.

Geetha Madhuri 2019-4-3

I am working on a MIMO system,which has 2 inputs and 2 outputs.I applied the command you have suggested step(sys_OL).

The responce has 4 graphs.How can I apply two step signals of different magnitudes as inputs ?. How to relate inputs and outputs?

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