where yðtÞ ¼ ypðtÞ þ dðtÞ is the measured output of the process subject to disturbances. The optimal control signal is such that it minimizes the cost function:
where yðtÞ ¼ ypðtÞ þ dðtÞ is the measured output of theprocess subject to disturbances.The optimal control signal is such that it minimizesthe cost function: