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本文对具有有界时变不确定性的离散时间系统的H∞状态反馈控制问题进行研究．导出了H∞干扰衰减约束下系统二次稳定的充分条件，给出了一种基于离散代数Riccati方程的带观测器的鲁棒H∞状态反馈综合方法．
In this paper, we study the H∞ state feedback control of discrete-time systems with bounded time-varying uncertainties. The sufficient conditions for the quadratic stability of the system under H∞ disturbance attenuation constraints are derived. A robust H∞ state feedback synthesis method with observer is presented based on the discrete algebraic Riccati equation.