抄録
Sensitivity in the optimal control of the plant with varying parameters is treated. The curious results of the sensitivity criteria derived by Pagurek and Witensenhausen are inquired and extended to the derivation of the relative sensitivity which is developed in the paper.
The conditions of minimizing the proposed relative sensitivity are given by equating the differentials of the optimal and suboptimal control laws with respect to the parameter regarded as a variable around the nominal value. The result is used to obtain the suboptimal control system having feedback loops.
