A Cooperative Guidance Law with Multi-constraints for Intercepting Maneuvering Target

Aiming at the problem of cooperative interception of maneuvering target by multiple air-to-surface missiles, a three-dimensional cooperative guidance law with falling angle constraint is proposed. Firstly, by applying Lyapunov theory, guidance commands are designed to ensure that missiles hit the target at desired falling direction and angle. Secondly, the time-to-go of each missile is estimated in the missile’s yaw plane by solving homogeneous differential equations with second-order constant coefficients. Then, based on the finite time consistency theory, a cooperative guidance law with time-varying guidance coefficient is designed, so that each missile hits the maneuvering target at the same time. Finally, the effectiveness and correctness of the multi-constraint cooperative guidance law designed in this paper are verified by simulation.