Prescribed-time cooperative guidance with bounded input under malicious attacks

This paper investigates the cooperative guidance problem for multiple flight vehicles against the maneuvering target under malicious attacks. Taking into account the false-data injection attacks and node compromise attacks, a resilient cooperative guidance law with prescribed-time convergence is proposed to achieve simultaneous arrival of multiple flight vehicles against a maneuvering target. A bounded-gain prescribed-time extended state observer is presented to effectively address the problem of target maneuvers and aerodynamic disturbances. By exploiting both the consensus error among neighbors and normalization strategy, an improved reputation system including confidence factors and trust factors is given to identify the attacked communication links and nodes. A series of numerical simulations are carried out to verify the effectiveness of the proposed cooperative guidance approach.