For the control system to work, sensor sampling and control must be performed at periodic intervals.
为了保持控制系统的正常工作，传感器的采样与控制必须按照一定的周期间隔。
The characteristic of the periodic task of control system is analyzed, and a periodic task model is given.
分析了控制系统中的周期性任务特性，给出了控制系统中周期性任务模型。
The periodic system provides better control over inventories than a perpetual system.
与永续盘存相比较，定期盘存提供更好的存货控制。
Secondly, we design an approximated delay feedback control method by applying Taylor theorem; it can make the controlled system stabilize the expected periodic orbits or equilibrium points.
其次，应用泰勒展开定理，设计了一种近似的延迟反馈控制方法，将受控的系统稳定到希望的周期轨道或平衡点上。
The optimal control problem of linear population dynamic system with age-structure in periodic environment was investigated.
在周期环境下，研究一类具有年龄结构种群线性动力系统的最优控制问题。
Good controlling results are gotten by using periodic pulses disturbance method proportioned with system variable to control the chaos.
利用正比于系统变量的周期脉冲扰动法对其混沌进行控制，得到较好的控制结果。
The fault diagnosis of multi-input and multi-output distributed networked control system with periodic communication sequence(PCS)was investigated.
提出了带有周期通信序列（PCS）的多输入与多输出分布式网络化控制系统的故障诊断方法。
A hybrid robust repetitive control scheme is presented to reject position relevant periodic disturbance in rate system of turntable.
提出了一种混合形式的鲁棒重复控制方法，来抑制转台速率系统中存在的位置相关周期性扰动。
Rotating speed and unbalance are used as control parameters to investigate routes to and out of chaos, and various forms of periodic, quasiperiodic and chaotic vibrations of the system.
转子转速与不平衡量被用来作为控制参数以研究进入和离开混沌区域的各种路径以及系统的各种形式的周期、拟周期与混沌运动。
The chaotic motions of the system can be successfully converted to the stable periodic orbits after the two methods were used to control chaos.
结果表明，通过这两种方法，可以控制系统的混沌运动而得到稳定的周期振动结果。
Since the real time task sets in control system consist of hard real time periodic tasks and soft real time period tasks, the dual priority algorithm is adopted for scheduling these tasks.
根据控制系统中存在强实时周期任务和软实时周期任务的特点，采用双优先级算法进行任务调度。
Based on the theory of repetitive control, the repetitive controller, which makes the output of the system track the periodic reference signals, is designed.
根据重复控制理论设计重复控制器，使系统的输出跟踪输入的周期性或重复性参考信号，从而达到跟踪控制的目的。
The result indicated that the chaotic motions of the system can be successfully converted to the stable periodic orbits after the two methods were used to control chaos.
结果表明，通过这两种方法，可以控制系统的混沌运动而得到稳定的周期振动结果。
The development of the control system of FMS is project with a complex technology, long periodic and high cost because of its complexity.
FMS的复杂性决定了其控制系统的研究开发是一项技术复杂、周期长、成本高的活动。
Ensure effective internal control system in finance area, periodic check and seek continuous improvements.
确保财务部门有效的内部控制系统，定期的审核，持续改善。
Relationship between vibration period of the system and control variables is discussed when chaos is controlled into single periodic state.
讨论了混沌被控制到单周期态时系统输出的振荡周期的变化规律与控制量的关系。
The performance of control system will degenerate with elapsed time to a control loop if there is no periodic maintenance.
对于控制回路，如果没有定期的维护，控制系统的性能会随着时间推移而退化。
The magnetic control system for polar orbiting, nadir pointing small satellite is studied in this paper. It is shown that the dynamics with magnetic control system is a linear periodic system.
在极地圆轨道上工作的对地定向磁控小卫星，其动力学方程是一个线性周期系统。
The magnetic control system for polar orbiting, nadir pointing small satellite is studied in this paper. It is shown that the dynamics with magnetic control system is a linear periodic system.
在极地圆轨道上工作的对地定向磁控小卫星，其动力学方程是一个线性周期系统。
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