Cooperative Strategy for Aircraft Defense Line-of-Sight Guidance in Three-Dimensional Space

This paper presents a line-of-sight guidance strategy based on static optimization for a Target aircraft and a Defender missile to cooperatively combat an Attacker missile. These three vehicles are modeled by nonlinear dynamics, and the en-gagement kinematics of the proposed guidance strategy is established in three-dimensional space. Based on the guidance laws obtained by sliding mode control, a cooperative strategy is obtained for the Target-Defender team by virtue of static optimization. It is vindicated by numerical simulations that the cooperative strategy can minimize the lateral accelerations of the Target and the Defender while completing the line-of-sight guidance interception.