Robust Leader-Follower Cooperative Guidance Under False-Data Injection Attacks

This article investigates the problem of leader-follower cooperative guidance in consideration of false-data injection attacks (FDIAs). Both the leader and the followers are required to reach the target at a desired impact time, while only the leader can receive the impact time command. A fixed-time convergent guidance law is presented for the leader to hit the target with impact time control. A distributed observer is introduced for each follower to estimate the leader's time to go. The confidence factors and the trust factors are exploited in the distributed observer to cope with FDIAs. Governed by the proposed distributed observer-based cooperative guidance law, the leader and the followers can achieve the simultaneous arrival in the presence of FDIAs. To facilitate the seekers detecting the target, the field-of-view angles of all the flight vehicles can be limited in a permissible range. Numerical simulation is carried out to verify the effectiveness.