文章基本信息

标题：Protecting Positive and Second-Order Systems against Undetectable Attacks
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作者：Jianqi Chen ; Jieqiang Wei ; Wei Chen 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：8373-8378
DOI：10.1016/j.ifacol.2017.08.1561
语种：English
出版社：Elsevier
摘要：AbstractUndetectable attacks in security studies of cyber-physical systems render the measurements of the system equal to a possible physical response. In this paper, we investigate defense strategies against the undetectable single-attack for positive systems and second-order systems, which both can be reinterpreted in terms of graphs with nodes and edges, while the undetectable attack is added through one of the nodes. We show that an arbitrary placement of a sensor prevents undetectable single-attack for these classes of systems. It is worth emphasising that we do not need to measure at the corrupted node to prevent the undetectable single-attack, but can measure at any node. The defense strategy is of a low complexity and can be readily implemented.
关键词：KeywordsUndetectable attacksdefense strategysensor placementpositive systemssecond-order systems