State Space block state vector value

Hello,

I am using Simulink built in state spacestate space block. The input to this block is u, and the output is y.

I also need the x value, the state vector. How can I extract this value from the built in state space block.

Answer 1

[Aquatris]

To do that you need to specify your states as outputs by modifying your C matrix.

C = [1 2 3 4]; % original C matrix that gives the system output 
               % for a 4 state system

Ce = [eye(4)
      C];      % modified C matrix where the system gives 5 outputs,
               % first 4 are the states, 5th is the actual output