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本文研究Ｄｅｌｔａ算子描述的线性不确定系统的鲁棒稳定性问题．利用Ｌｙａｐｕｎｏｖ方法给出了系统在非结构摄动与结构摄动情形下具有鲁棒稳定性的充分条件．所得结果将连续系统与离散系统的有关结构统一到Ｄｅｌｔａ算子系统框架中．
In this paper, we study the robust stability of linear uncertain systems described by Delta operators. The sufficient conditions for the system to have robust stability under unstructured perturbation and structural perturbation are given by Lyapunov method. The results of the continuous system and discrete system related structure unified into the Delta operator system framework.