Observer-based H∞-consensus control of nonlinear multi-agent systems under hybrid attacks

This paper studies the H-infinity-consensus control of nonlinear multi-agent systems with measurement saturation under hybrid attacks. Firstly, nonlinearity and measurement saturation phenomena are considered during the modeling process, making the established system model closer to practical engineering applications. Then the observer and controller of the system are designed under the hybrid attacks involving deception attacks and denial of service attacks. A sufficient condition is provided to guarantee that the consensus error meets the desirable disturbance attenuation level against exogenous disturbances. Therefore, the parameterized form of the observer and controller gain is attained by the solutions to a matrix inequality. Finally, an example verifies the validity of the control algorithm research.