Can I adjust the matrix of state-space model during simulation in Simulink?

I want to change the system matrix during the dynamic simulation within the Simulink. I can do that with following codes using the command "lsim": ..... %%Stage I X1 = lsim(sys_1,u(1:100),t(1:100)); %%Stage II X2 = lsim(sys_2,u(101:end),t(101:end),X1(end,:)); %%X1(end,:) is the last state of Stage I and to be the initial state of Stage II .....

But for convenient, I prefer the simulation to be performed in the Simulink with the block "State-space". How could I to integrate the above two lsims into one Simulink model with some special design and blocks?

Thank you!

Answer 1

[Guy Rouleau]

See my answer here:

http://www.mathworks.com/matlabcentral/answers/10373-dynamic-transfer-function-in-simulink

There is a link to an example for state space format

[Jiazeng Shan]

Hi Guy, the option 4 in your solutions inspires me. Let me try it firstly. Thank you.