不可靠WSN时钟同步网络化输出反馈MPC量化分析

发布时间：2018-03-09 20:55

本文选题：时钟同步　切入点：丢包　出处：《仪器仪表学报》2017年07期 　论文类型：期刊论文

【摘要】：在Cyber-Physical环境下,时钟同步双向信息交换过程中,包含时钟信息的数据包丢失将对时钟同步性能产生影响。讨论了现代控制理论状态空间模型的输出反馈Tubes-MPC时钟同步方法。由分离原理,设计了本地化的状态估计器与控制器,实现了输出反馈Tubes-MPC时钟同步的指数稳定。以不完全量测下的观测模型为基础,定量分析了统计意义下的同步误差方差上界与下界,并采用MPC中Set-Theory-in-Control方法,将完全量测下的干扰误差集合运算于由丢包所引入的附加的估计误差集合,建立了集合约束下的模型预测优化模型。已构建的统一框架下的输出反馈Tubes-MPC时钟同步系统化方法,综合考量了控制理论在线计算复杂度与网络控制观点应用的可行性,对无线网络的不可靠性、网络规模、收敛性能具有鲁棒性,进一步容易扩展为网络级绝对时钟状态空间模型。
[Abstract]:In the Cyber-Physical environment, the clock synchronization two-way information exchange process, including the clock information packet loss will affect the performance of Tubes-MPC is discussed. The clock synchronization output clock synchronization method of modern control theory, the state space model of feedback. By the separation principle, a state estimator and controller of localization, the output feedback index Tubes-MPC the clock synchronization stability. With incomplete measurements observation model based on the quantitative analysis of the statistical significance of the synchronization error variance upper and lower bounds, and using the method of Set-Theory-in-Control MPC, the interference error measurement under the complete set operation on the estimation error introduced by the additional loss set, optimization model is established. Set under the constraint of model prediction. Tubes-MPC clock synchronization system method has been constructed under the unified framework of output feedback, comprehensive consideration The feasibility of control theory online computing complexity and network control viewpoint is applied, which is robust to wireless network's reliability, network size and convergence performance, and is further extended to network level absolute clock state space model.

【作者单位】：重庆邮电大学工业物联网与网络化控制教育部重点实验室;
【基金】：国家自然科学基金(51605065,61403055) 重庆市教育委员会科学技术研究项目(KJ1600402) 重庆市前沿与应用基础研究项目(CQ CSTC 2014JCYJA40005,CQ CSTC 2014JCYJA40025)资助
【分类号】：TN929.5;TP212.9

【相似文献】