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Author Naghnaeian, Mohammad ♦ Hirzallah, Nabil ♦ Voulgaris, Petros G.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Other branches of engineering
Subject Keyword Sensors ♦ Actuators ♦ Security ♦ Aerodynamics ♦ Monitoring ♦ Linear systems ♦ Cyber-physical systems
Abstract We consider malicious attacks on actuators and sensors of a feedback system which can be modeled as additive, possibly unbounded, disturbances at the digital (cyber) part of the feedback loop. We precisely characterize the role of the unstable poles and zeros of the system in the ability to detect stealthy attacks in the context of the sampled data implementation of the controller in feedback with the continuous (physical) plant. We show that, if there is a single sensor that is guaranteed to be secure and the plant is observable from that sensor, then there exist a class of multirate sampled data controllers that ensure that all attacks remain detectable. These dual rate controllers are sampling the output faster than the zero order hold rate that operates on the control input and as such, they can even provide better nominal performance than single rate, at the price of higher sampling of the continuous output.
Description Author affiliation: Mechanical Science and Engineering Department, University of Illinois, Urbana, USA (Naghnaeian, Mohammad) || Aerospace Engineering Department and the Coordinated Science Laboratory, University of Illinois, Urbana, USA (Voulgaris, Petros G.) || Electrical and Computer Engineering Department, University of Illinois, Urbana, USA (Hirzallah, Nabil)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-12-15
Publisher Place Japan
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781479978861
Size (in Bytes) 439.10 kB
Page Count 6
Starting Page 1415
Ending Page 1420

Source: IEEE Xplore Digital Library