在MPC控制系统中添加白噪音

用MATLAB的Simulink工具箱实现MPC控制，对MPC对象添加白噪音，代码如下：

%% Modify Controller Design: Increase Estimator Signal-to-%% Noise
% The controller is stable but its disturbance rejection is % sluggish.  Try  increasing the state estimator signal-to-% noise by a factor of 10 and test the design again.

D = ss(getindist(MPC_OBJ));
D.b = eye(2)*10;
set(D,’InputName’,[],’OutputName’,[],’InputGroup’,[],’OutputGroup’,[]);
setindist(MPC_OBJ, ‘model’, D);