Adaptive Prescribed-Time Cooperative Guidance With Actuator Efficiency Loss

To address the efficiency loss of actuators in cooperative guidance for multiple missiles intercepting a maneuvering target, this paper proposes a Three-Dimensional (3D) adaptive Prescribed-Time (PT) cooperative guidance strategy. A three-channel decoupled model with actuator efficiency loss decomposes the 3D system into longitudinal and normal/lateral subsystems to separately satisfy impact time and impact angle constraints. For the longitudinal subsystem, an adaptive PT cooperative guidance law with consensus ensures all missiles agree on relative distance and speed within a predefined time under a unified communication topology. For the normal and lateral subsystems, an adaptive PT impact-angle guidance law with virtual control inputs relies only on local state information to meet angle constraints. Rigorous stability analysis verifies the PT convergence of both guidance laws. Simulation results validate rapid convergence within the specified impact time, effective satisfaction of impact-angle constraints, resilience to input disturbances, and robust performance across diverse communication topologies and initial conditions.