本文提出一种降低灵敏度的次最优鲁棒调节器的设计法.它基于 Riccati 方程的性质和极点配置理论,首先给出了建立较精确灵敏度模型的一种直接计算法,接着对含灵敏度的增广系统进行线性最优调节器设计,最后研究了最优调节器的实现问题,给出了只用状态反(?)构成的调节器.它具有结构简单,实现容易的优点.用本法设计的系统,具有较好的参数摄动鲁棒性和次最优性. In this paper, we propose a method to reduce the sensitivity of the suboptimal robust regulator design method.First, based on the properties of Riccati equation and the pole assignment theory, a direct method of establishing a more accurate sensitivity model is given, Finally, the realization of the optimal regulator is studied, and the regulator with only state inversion (?) Is given. It has the advantages of simple structure and easy implementation. The designed system has better parameter perturbation robustness and suboptimality.