Title | ||
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On stability and convergence of optimal estimation for networked control systems with dual packet losses without acknowledgment. |
Abstract | ||
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This paper studies the optimal state estimation problem for networked control systems with control and observation packet losses but without packet acknowledgment (ACK). The packet ACK is a signal sent by the actuator to inform the estimator whether control packets are lost or not. Systems with packet ACK are usually called transmission control protocol (TCP)-like systems, and those without ACK are named user datagram protocol (UDP)-like systems. For UDP-like systems, the optimal estimator is derived and it is consisted of an exponentially increasing number of terms. By developing an auxiliary estimator, it is shown that there exists a critical observation packet arrival rate determining the stability of the expected EC (EEC), and it is identical to its counterpart for TCP-like systems. It is revealed that whether there is packet ACK or not has no effect on the stability of the EEC. Furthermore, under some conditions the EEC converges exponentially. |
Year | DOI | Venue |
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2018 | 10.1016/j.automatica.2017.12.059 | Automatica |
Keywords | Field | DocType |
Networked control systems,Optimal estimation,Stability,Packet losses,Packet acknowledgment | Convergence (routing),User Datagram Protocol,Control theory,Network packet,Optimal estimation,Transmission Control Protocol,Control system,Mathematics,Actuator,Estimator | Journal |
Volume | Issue | ISSN |
90 | 1 | 0005-1098 |
Citations | PageRank | References |
7 | 0.53 | 17 |
Authors | ||
6 |
Name | Order | Citations | PageRank |
---|---|---|---|
hong lin | 1 | 72 | 5.76 |
Hongye Su | 2 | 3563 | 187.46 |
Michael Z. Q. Chen | 3 | 834 | 41.20 |
Zhan Shu | 4 | 604 | 34.84 |
Renquan Lu | 5 | 2228 | 106.36 |
Zhengguang Wu | 6 | 3550 | 137.72 |