Consensus Cooperative Encirclement Interception Guidance Law for Multiple Vehicles against Maneuvering Target

This paper studies a cooperative encirclement interception guidance law against maneuvering target that utilizes leader–follower control scheme. The design is decoupled into two parts. In the line-of-sight (LOS) direction, fixed-time distributed disturbance observer presented to estimate of target. Based on proposed observer, designed for followers guarantee each follower’s total flight time achieves consensus with leader. normal direction LOS, command realize predefined-time protocol. convergence algorithm proven by Lyapunov stability theory. Numerical simulations are provided demonstrate effectiveness and superiority cooperative-guidance law.