An output-feedback adaptive control architecture for mitigating actuator attacks in cyber-physical systems

Abstract

In this paper, we present a control design framework wherein an adaptive-based corrective signal is augmented to the output of the nominal controller in order to suppress or counteract the effect of malicious actuator attacks. Due to the unavailability of full-state measurements, a nonminimal controllable realization of the nominal closed-loop system is used to design the corrective signal predicated on partial state information. Two illustrative numerical examples are given to demonstrate the efficacy of the proposed adaptive control architecture. - 2019 John Wiley & Sons, Ltd.