| 1. | We investigate the discrete time system which is described by s operator as follows
本文主要从以下几个方面对delta算子系统做了探讨。 |
| 2. | 4 . this chapter studys the variable structure control strategy of line certain discrete time system , line uncertain discrete tune system and lag certain discrete time system
4 .研究了线性定常离散系统、离散不确定系统、滞后离散确定系统变结构控制策略。 |
| 3. | The existing condition of optimal controller in the discrete time system described by s operator is discussed in this paper , in which the method of dynamic programming is used
采用动态规划方法研究了delta算子描述下的离散系统存在最优控制器的条件，得到了delta域内的riccati方程，设计了基于delta算子描述下的离散系统的最优反馈控制器。 |
| 4. | The third chapter deals with a non - absolute priority queueing system b / d / 1 with decision time and two priority . this is a discrete time system . also adopting the method of imbedded markov chain , we can obtain the mean queue length for each queue
采用嵌入马尔可夫链的方法，求出了两个队队长联合分布的母函数的解析表达式，并进而求出了两个队的平均队长。 |
| 5. | The design of vsc for uncertain discrete time systems is discussed . a grey estimating model is built for the uncertain part and thus values of parameters are obtained . simulation results are presented to illustrate that the method in the thesis is rational
四、研究了不确定系统的离散时间变结构控制，利用灰色系统理论，对不确定部分建立灰色估计模型，给出仿真数例，结果表明此方法是合理的。 |
| 6. | Moreover , the theory research and application reported of vsc appeared in the field of state estimation , discrete time system control , time delay control , robust control for uncertain systems , adaptive control , output feedback control and so on
现今在状态估计、离散系统控制、时滞系统控制、不确定性系统的鲁棒控制、自适应控制、预测控制、输出反馈控制等方面均有变结构控制理论的研究和报道。 |
| 7. | The guaranteed cost control problem of robust stabilization and robust performance for uncertain systems which is described by 8 operator is discussed in this paper . the condition of existing guaranteed cost controller is analyzed and proved in which the method of linear matrix inequality ( lmi ) is used . a output feedback controller of the uncertain discrete time system described by 6 operator is designed , which guarantees the system is quadratic stabilization
采用线性矩阵不等式( lmi )处理方法研究了delta算子描述的不确定离散系统的输出反馈保成本控制问题，设计了输出反馈控制器，使得闭环不确定系统不仅是鲁棒稳定的，而且对所有允许的不确定性，给定二次型性能指标的闭环性能值不超过某个确定的上界。 |
