simulation on matlab (not on simulink)

I want to disturbance observation simulation on matlab not on simulink.

difinition:

E:error, R:reference, D:disturbance, De:estimated disturbance

P:real plant, Pm:model of P, C:controler, F:filter,

Y:output of P, Ym:output of Pm, U:output of C

four equations:

U=C*E=C*(R-Y)

Y=P*(U+D-De)

Ym=Pm*(U-De)

De=Pm^(-1)*F*(Y-Ym)

So, when I set R and D, how can I get Y without using simulink ??

I must solve these simultaneous equations??

Or I can use somethig useful matlab functions ??

Answer 1

[Paul]

If have the a license for the Control System Toolbox you can use the connect function to build the model you want from a block diagram with R and D as inputs and Y as an output.

doc connect