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On Redundant Observability: From Security Index to Attack Detection and Resilient State Estimation

Title
On Redundant Observability: From Security Index to Attack Detection and Resilient State Estimation
Authors
Lee, ChanhwaShim, HyungboEun, Yongsoon
DGIST Authors
Eun, Yongsoon
Issue Date
2019-02
Citation
IEEE Transactions on Automatic Control, 64(2), 775-782
Type
Article
Article Type
Article
ISSN
0018-9286
Abstract
The security of control systems under sensor attacks is investigated. Redundant observability is introduced, explaining existing security notions including the security index, attack detectability, and observability under attacks. Equivalent conditions between redundant observability and existing notions are presented. Based on a bank of partial observers utilizing Kalman decomposition and a decoder exploiting redundancy, an estimator design algorithm is proposed enhancing the resilience of control systems. This scheme substantially improves computational efficiency utilizing far less memory. © 1963-2012 IEEE.
URI
http://hdl.handle.net/20.500.11750/6555
DOI
10.1109/TAC.2018.2837107
Publisher
Institute of Electrical and Electronics Engineers
Related Researcher
  • Author Eun, Yongsoon DSC Lab(Dynamic Systems and Control Laboratory)
  • Research Interests Resilient control systems; Control systems with nonlinear sensors and actuators; Quasi-linear control systems; Intelligent transportation systems; Networked control systems
Files:
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Collection:
Department of Information and Communication EngineeringDSC Lab(Dynamic Systems and Control Laboratory)1. Journal Articles


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