Adaptive fault-tolerant cooperative guidance with accurate time-to-go estimation under field-of-view constraints

In this paper, the cooperative guidance problem in the presence of actuator faults and field-of-view (FOV) constraints is investigated. First, an accurate and fully analytical time-to-go estimation solution is given based on a varying-gain proportional navigation guidance law. Secondly, a distributed cooperative guidance law is proposed to achieve impact time consensus within a fixed time. Third, the adaptive law is introduced to deal with the effect of the unknown actuator faults, and an auxiliary gain is presented to ensure the satisfaction of FOV constraints. Finally, the simulation results indicate that vehicles governed by the proposed cooperative guidance law can achieve the simultaneous arrival successfully.