Title
Security Analysis Of Continuous-Time Cyber-Physical System Against Sensor Attacks
Abstract
This paper investigates the secure state estimation problem for a continuous-time Gauss-Markov system, where the physical plant is observed by m sensors and a subset of the sensors can potentially be compromised by an adversary. Under mild assumptions, we prove that the continuous-time optimal Kalman estimate can be decomposed as a weighted sum of local state estimates, each of which is computed using only the measurements from a single sensor. Then a convex optimization based approach is proposed to generate a more secure state estimate based on these local estimates. We provide a sufficient condition under which the proposed estimator is stable against the attack when less than half of the sensors are compromised. Finally, a numerical example is provided to illustrate the performance of the proposed secure state estimation scheme.
Year
Venue
Field
2017
2017 13TH IEEE CONFERENCE ON AUTOMATION SCIENCE AND ENGINEERING (CASE)
Secure state,Mathematical optimization,Computer science,Kalman filter,Convex function,Security analysis,Cyber-physical system,Physical plant,Convex optimization,Estimator
DocType
ISSN
Citations 
Conference
2161-8070
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Xinghua Liu17614.84
Yilin Mo289151.51
Xiaoqiang Ren35812.21