Bounded Differential Game Guidance Law for Interceptor Missiles with Aero Fins and Reaction Jets

作者：Li Yunqian^*; Qi Naiming; Zhang Wenhui; Wang Xianlu

来源：Transactions of the Japan Society for Aeronautical and Space Sciences, 2011, 53(182): 275-282.

DOI：10.2322/tjsass.53.275

• Differential Game
• Guidance
• Interceptor Missile
• Reaction Jet
• Game Space

A differential game guidance law for an endoatmospheric interceptor missile steered by aero fins and reaction jets is developed in this paper with bounded controls. For a low-altitude endoatmospheric interceptor, the propellant of the reaction-jet control system (RCS) is restricted by the missile configuration. Considering propellant limits, the effect of the RCS thrust on homing performance is investigated through game space structures. Also, to use the RCS at an appropriate timing, game space decomposition is used to determine the initiating time of the RCS. Finally, the effectiveness of the guidance law is demonstrated by a realistic ballistic missile defense scenario. It is shown that the proposed guidance law provides a significant improvement in homing accuracy compared to the conditional one. Furthermore, under propellant limits, a bigger RCS thrust cannot guarantee a higher homing accuracy.

• 出版日期2011-2
• 单位哈尔滨工业大学