How can I define a state space model with disturbance variables in Matlab?

I want to define a state space model with disturbance variables d(t)

I have the matrices values (A,B,D,C,D,E,F) but the state space Matlab function just includes A,B,C and D matrices (sys = ss(A,B,C,D)) but not E and F (which corresponds to disturbances). How can I include those disturbances in my system?

[DUC HONG PHUC BUI]

You can use the State-space model with identifiable parameters

sys = idss(A,B,C,D,K)

[NEELAMSETTI KIRN KUMAR 17PHD0075]

i have a query for the above question

how to convert the statespace model with distrubance to transfer function.

I have the matrices values (A,B,D,C,D,E,F)

can you help

[John]

I'm not sure I follow. K is set as a matrix mapping, no? How does adding K allow inputting d(t), which is a time-series?

Answer 1

[Justin Matt]

You could augment the B,D and u matrices and then drop out the distrubance terms:

B_new = [B, E]

u_new = [u; d]

D_new = [D F]

Alternatively you could make a block diagram state space model in Simulink following the typical structure and adding your extra terms where necessary