The unitary missile target kinematics model is established based on the relative kinematics firstly. Then the guidance law is designed using variable structure system theory.

Finally, present the simulation result of above design combining seeker handing-off model, compound control system model, projectile body kinematics model and target maneuver model.

This paper proposes one kind of adaptive IMM algorithm based on kinematics parameters used for tracking the high speed and high maneuvering target.