主动防御协同自适应滑模制导律

Cooperative guidance law for active protection based on adaptive sliding-mode control

飞机相比于攻击导弹,在飞行速度和机动性能等方面存在着劣势。为了提高其生存几率,设计了一种发射防御导弹协同对抗攻击导弹的自适应滑模制导律。该制导律本质是一种视线(Line of Sight,LOS)制导方法,通过对飞机与防御导弹和防御导弹与攻击导弹间的LOS调整以满足特定的几何关系,从而实现对攻击导弹的主动防御。最后,将所设计的制导律与比例导引进行了仿真比较。结果表明,由于与目标间的协同,所设计的制导律在机动性能和拦截性能方面具有明显的优势,且对于三方的飞行速度变化与攻击导弹的机动具有较强的鲁棒性。

As compared with the attacking missile,the aircraft has the disadvantages of flight velocity and maneuverability.To improve the survivability,the aircraft can launch a defending missile to intercept the attacker and correspondingly,a cooperative guidance law of defending missile is presented based on adaptive sliding-mode control.This guidance law is a kind of line of sight（LOS） guidance approach in essence,which guide the defending missile to locate inside the LOS between the aircraft and the attacking missile for active defense.Finally,simulations are carried out compared to proportional navigation.The results show that this guidance law has advantages of maneuvering performance and intercepting performance because of the cooperation with the aircraft and has strong robustness to the velocity variations of the three bodies and the maneuver of the attacking missile.