离散随机系统的容错约束方差控制设计(英文)

Design of Variance-Constrained Fault-Tolerant Controllers for Discrete-Time Stochastic Systems

本文考虑线性离散随机系统的容错约束方差控制设计问题，即设计反馈控制器，使闭环系统在可能的传感器失效下不仅保持渐近稳定，而且满足预先给定的稳态方差约束．文中导出了期望的容错约束方差控制器存在的充分条件，并进一步给出了其参数化代数表达式．

In this paper, the problem of designing variance-constrained fault-tolerant controllers for discrete-time stochastic systems is considered. The purpose of the addressed problem isto find the feedback controller so that the closed-loop system satisfies the prespecified steady-statevariance constraints,and remains asymptotically stable against possible sensor failures,simultaneously. The sufficient conditons for the existence of variance-constrained fault-tolerant controllersare characterized. The analytical expression of desired controllers is also pressented.