主动防御最优追踪-逃逸导引律设计

Design of optimal pursuit and evasion guidance law for active protection

为提高导弹对抗条件下飞机的生存能力,在主动防御新技术思想基础上,设计了一种最优拦截-逃逸导引律,以保证防御导弹与攻击导弹之间的脱靶量及其各自的能量消耗最小。建立了目标机-防御导弹-攻击导弹非线性模型,并在视线附近进行了线性化。采用终端投影变换方法实现模型降阶,利用变分法推导并简化了导引律中状态转移矩阵的求解方法。最后通过仿真验证了所设计导引律的有效性。

In order to improve survivability under missile defense, an optimal pursuit and evasion guidance law against missile is presented based on active protection strategy, ensuring minimized miss distance and energy consumption between the defensive and attack missiles. Firstly nonlinear model of ＂Evasion Aircraft-Defensive Missile-Attack Missile＂ was built and linearized near the line of sight. Terminal projection transformation was adopted for model＇ s order reduction. The solution for state transform matrix in the guidance law is derived and simplified by using the variation method. Finally, the simulation resuits show the effectiveness of the guidance law.