文章基本信息

标题：State Estimation of Linear Systems over a Network subject to Sporadic Measurements, Delays, and Clock Mismatches
本地全文：下载
作者：Marcello Guarro ; Francesco Ferrante ; Ricardo Sanfelice 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：23
页码：313-318
DOI：10.1016/j.ifacol.2018.12.054
语种：English
出版社：Elsevier
摘要：AbstractThis paper proposes a hybrid observer for the estimation of the state of a plant over a realistic network. The network provides delayed measurements of the output of the plant at time instants that are not necessarily periodic and are accompanied by timestamps provided by a clock that eventually synchronizes with the clock of the observer. The proposed observer, along with the plant and communication network, are modeled by a hybrid dynamical system that has two timers, a logic variable, and two memory states to capture the mechanisms involved in the events associated with sampling and arrival of information, as well as the logic in the estimation algorithm. The hybrid model also includes a generic clock synchronization scheme to cope with a mismatch between the clocks at the plant and the observer. Convergence properties of the estimation error of the system are shown analytically and supported by numerical examples.
关键词：KeywordsHybridswitched systems modelingObservers for linear systemsControl over networksSystems with time-delays