2015 |
Rhouma, T.; Keller, J. Y.; Sauter, D.; Chabir, K.; Abdelkrim, M. N. Active GLR detector for resilient LQG controller in networked control systems Conférence vol. 28, no. 21, 2015, ISSN: 24058963, (cited By 9). Résumé | Liens | BibTeX | Étiquettes: Anomaly detector; Computing science; Generalized Likelihood Ratio Test; Linear quadratic Gaussian control; Linear Quadratic Gaussian controllers; Model-based fault detection; Normal operations; Tracking ability, Controllers; Fault detection; Kalman filters; Network architecture; Network security; Plant management; Robustness (control systems); Control systems, Networked control systems @conference{Rhouma2015754, In computing science, resilience is the ability of system or network architecture to recover normal operation after a brutal crash. When malicious cyber act on control signals of a Networked Control System (NCS) is designed to remain undetectable from passive modelbased Fault Detection and Isolation (FDI) schemes, we show that the unobservable consequence on the state variable of the plant becomes brutally observable after the disappearance of the damaging action. In order to quickly recover the nominal behavior of the Linear Quadratic Gaussian (LQG) controller, a resilient LQG controller is obtained from an active version of the Generalized Likelihood Ratio (GLR) test designed to detect the disappearance of the malicious act and to increase the tracking ability of the Kalman filter at detection time. © 2015, IF AC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. |
Publications
2015 |
Active GLR detector for resilient LQG controller in networked control systems Conférence vol. 28, no. 21, 2015, ISSN: 24058963, (cited By 9). |