Distributed interval state estimation with l∞-gain optimization for cyber–physical systems subject to bounded disturbance and random stealthy attacks

This paper studies the distributed interval state estimation problem for cyber–physical systems with bounded disturbance and random stealthy attacks. Since conventional interval observers cannot complete the task of real-time monitoring system under random attacks, an attack-resistant distributed in...

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Vydáno v:ISA transactions Ročník 127; s. 22 - 31
Hlavní autoři: Xie, Jiyang, Zhu, Shuqian, Zhang, Dawei
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Elsevier Ltd 01.08.2022
Témata:
[formula omitted]-gain optimization
Distributed observer
Interval estimation
Linear programming
Random stealthy attack
Distributed observer
Linear programming
l∞-gain optimization
Random stealthy attack
Interval estimation
gain optimization
ISSN:0019-0578, 1879-2022, 1879-2022
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Shrnutí:This paper studies the distributed interval state estimation problem for cyber–physical systems with bounded disturbance and random stealthy attacks. Since conventional interval observers cannot complete the task of real-time monitoring system under random attacks, an attack-resistant distributed interval observer is designed by using attack frequency and interval attack estimation. Using the designed observer, upper- and lower-bounding estimation error systems are modeled by positive interconnected systems with hybrid deterministic and random bounded inputs. To explicitly attenuate the effect of disturbance and attacks, the resulting deterministic positive error system between upper- and lower-bounding estimates is formulated. By linear programming, the results of interval observer design and l∞-gain optimization are proposed. The remote monitoring of vehicle lateral dynamic is given for numerical verification of the results. •A new distributed interval observation method for general linear system is proposed.•The disturbance attenuation problem of stochastic interval error systems is solved.•The method can provide real-time changing ranges of CPS dynamics against attacks.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0019-0578
1879-2022
1879-2022
DOI:10.1016/j.isatra.2022.01.010