| 离散事件系统的可测性 |
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| 引用本文： | 舒少龙,林 峰,黄志强.离散事件系统的可测性[J].计算机工程与应用,2007,43(15):19-21. |
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| 作者姓名： | 舒少龙 林 峰 黄志强 |
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| 作者单位： | [1]同济大学电信学院,上海200092 [2]韦恩州立大学电子与计算机工程系,底特律,美国 |
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| 摘 要： | 讨论基于自动机/形式语言模型的离散事件系统(DES)的可测性问题。可测性即为根据系统的可观事件和状态输出的信息估计系统的当前状态。定义了四种可测性:强可测性,弱可测性,强周期可测性,弱周期可测性。给出了这些可测性的充要条件,这些充要条件可通过构建观测器进行有效的判定。
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| 关 键 词： | 离散事件系统 自动机/形式语言 可测性 状态估计 |
| 文章编号： | 1002-8331（2007）15-0019-03 |
| 修稿时间： | 2007-01 |
Detectability of Discrete Event Systems |
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| SHU Shao-long,LIN Feng,HUANG Zhi-qiang.Detectability of Discrete Event Systems[J].Computer Engineering and Applications,2007,43(15):19-21. |
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| Authors: | SHU Shao-long LIN Feng HUANG Zhi-qiang |
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| Affiliation: | 1.School of Electronics and Information Engineering,Tongji University,Shanghai 200092,China; 2.Department of Electrical and Computer Engineering,Wayne State University,Detroit,USA |
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| Abstract: | Detectability of Discrete Event Systems(DES) based on automata/languages is studied.Detectability is to determine the current state of the system according to the event observations and state observations.Four types of detectabilities are defined:strong detectability,weak detectability,strong periodic detectability,and weak periodic detectability.Necessary and sufficient conditions are derived for these detectabilities.These conditions can be checked by constructing an observer,which models the estimation of states under different observations. |
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| Keywords: | Discrete Event System(DES) automata/languages detectability state estimation |
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