Further Study on Networked Control Systems with Unreliable Communication Channels

Further Study on Networked Control Systems with Unreliable Communication Channels
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不可靠通信通道网络控制系统的进一步研究

DOI:
10.1007/s12555-019-1046-9
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发表时间:
2020-09
期刊:
International Journal of Control, Automation and Systems
影响因子:
--
通讯作者:
Haixia Wang
Haixia Wang
中科院分区:
其他
文献类型:
--
作者:
Xiao Lu;Na Wang;Qingyuan Qi;Xiao Liang;Haixia Wang

文献摘要

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研究了具有不可靠通信信道的网络控制系统的线性二次型高斯(LQG)控制和镇定问题。这些基本问题因其广泛的应用而引起了广泛的关注。我们的贡献如下。对于有限时域情形,在不使用时间戳技术的情况下,利用新息序列的新奇方法,基于时滞间歇观测值,导出了最优估计器;基于前向和后向差分方程(FBDEs)以及两个耦合Riccati方程的解,给出了最优控制问题的一个充要条件.对于无限视界情形,证明了在一定的假设下,系统在均方意义下有界的充要条件是代数Riccati方程存在唯一正解.
This paper focuses on the fundamental problems of linear quadratic gaussian (LQG) control and stabilization problems for networked control systems (NCSs) with unreliable communication channels (UCCs) where packet dropout, input delay and observation delay occur. These basic issues have attracted extensive attentions due to broad applications. Our contributions are as follows. For the finite horizon case, without time-stamping technique, the optimal estimator is derived by using the novelty method of innovation sequences based on the delayed intermittent observations; A necessary and sufficient condition for the optimal control problem is presented on the basis of the solution to the forward and backward difference equations (FBDEs) and two coupled Riccati equations. For the infinite horizon case, it is shown that under certain assumption, the system can stay bounded in the mean square sense if and only if the algebraic Riccati equation admits the unique positive solution.
具有饱和约束的非线性半马尔可夫跳跃系统的基于观测的有限时间控制
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