Optimal control of LTI systems over unreliable communication links
Optimal control of LTI systems over unreliable communication links
复制标题
DOI：
10.1016/j.automatica.2006.03.011
复制
发表时间：
2006-09-01
期刊：
影响因子：
6.4
通讯作者：
Basar, Tamer
中科院分区：
文献类型：
--
作者：
Imer, Orhan C.;Yueksel, Serdar;Basar, Tamer
研究了不可靠通信链路上线性时不变系统的最优控制问题。产生这个问题的原因是，越来越多的应用程序需要通过internet类型或无线网络远程控制对象，而这些网络的链接容易出现故障。根据确认（ACK）信号的可用性，考虑了两种不同类型的网络协议。在TCP结构下，假定存在ACK信号，不像UDP结构中不存在ACK数据包。这里的目标是均方（ms）稳定系统，同时最小化二次性能标准，当控制器和设备之间的信息流由于链路故障或数据包丢失而中断时。给出了稳定最优控制器存在的充分条件。(C) 2006 Elsevier Ltd版权所有。
In this paper, optimal control of linear time-invariant (LTI) systems over unreliable communication links is studied. The motivation of the problem comes from growing applications that demand remote control of objects over Intemet-type or wireless networks where links are prone to failure. Depending on the availability of acknowledgment (ACK) signals, two different types of networking protocols are considered. Under a TCP structure, existence of ACK signals is assumed, unlike the UDP structure where no ACK packets are present. The objective here is to mean-square (m.s.) stabilize the system while minimizing a quadratic performance criterion when the information flow between the controller and the plant is disrupted due to link failures, or packet losses. Sufficient conditions for the existence of stabilizing optimal controllers are derived. (C) 2006 Elsevier Ltd. All rights reserved.