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This paper proposes a cooperative guidance law for attacking a ground target with the impact angle constraint based on the motion camouflage strategy in the line-of-sight (LOS)frame.A dynamic model with the impact angle constraint is es-tablished according to the relative motion between multiple mis-siles and the target.The process of cooperative guidance law design is divided into two stages.Firstly,based on the undirec-ted graph theory,a new finite-time consensus protocol on the LOS direction is derived to guarantee relative distances reach consensus.And the value of acceleration command is positive,which is beneficial for engineering realization.Secondly,the ac-celeration command on the normal direction of the LOS is de-signed based on motion camouflage and finite-time conver-gence,which can ensure the missiles reach the target with the desired angle and satisfy the motion camouflage state.The finite-time stability analysis is proved by the Lyapunov theory.Numeri-cal simulations for stationary and maneuver targets have demon-strated the effectiveness of the cooperative guidance law pro-posed.