Proceedings of the 9th Annual ISC Graduate Research Symposium
ISC-GRS 2015
April 27, 2015, Rolla, Missouri
OPTIMAL DEFENSE AND CONTROL FOR CYBER-PHYSICAL SYSTEMS
Haifeng Niu and S. Jagannathan
Electrical and Computer Engineering Department,
Missouri University of Science and Technology
{hnhy6, sarangap}@mst.edu
ABSTRACT
In this paper, we propose a novel representation for cyber-physical systems wherein the activities of the
cyber system affect the states of the physical plant and vice versa. Subsequently by using this representation,
the optimal strategies are derived for the defender and the attacker. Next, an optimal controller is revisited
for the physical system in the presence of uncertain dynamics resulting from the cyber system under attacks.
Finally, an illustrative example is given where the proposed theory is evaluated on the yaw-channel control
of an unmanned aerial vehicle (UAV). Simulation results show that on the cyber side, both the attacker and
the defender gain their greatest payoff whereas on the physical system side, the optimal controller is able to
maintain the system stable.