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研究一类不确定性时滞系统的鲁棒镇定问题．当系统既有状态时滞又有控制输入时滞，而且系统的状态和控制输入均含有不确定性时，假设不确定性满足具有一定物理意义的匹配条件，得到了系统可由基于观测器的状态反馈鲁棒镇定的充分条件，并给出了观测器和反馈控制器的设计步骤．该方法仅需求解两个黎卡提不等式．
A robust stabilization problem for a class of uncertain time-delay systems is studied. When the system has both state delay and control input delay, and the state and control inputs of the system contain uncertainties, it is assumed that the uncertainty meets the matching condition with some physical meaning. The system is obtained from observer-based state Sufficient conditions for feedback robust stabilization and the design steps of observer and feedback controller are given. This method only needs to solve two Riccati inequalities.