反舰导弹大空域变轨的三维扩展比例导引律

Three-dimensional Extended Proportional Navigation Guidance Law of Anti-warship Missile's Large-airspace Varying Trajectory

为了使大空域变轨弹道的理论研究更符合反舰导弹的实际运动状态,建立了反舰导弹追踪虚拟目标的三维空间相对运动模型。同时,为了保证反舰导弹大空域变轨弹道的四段弹道平滑过渡,在导引律设计时同时考虑了脱靶量要求和末端落角要求。应用Lyapunov稳定性理论求解出满足要求的三维扩展比例导引律,对大空域变轨弹道的四段弹道设计了相应的过载控制指令,并进行了仿真研究。仿真结果表明:所提出的三维扩展比例导引律可以使反舰导弹顺利完成大空域飞行任务,而且保证了反舰导弹的所有性能指标均满足要求。

In order to make the theoretical research on large-airspace varying trajectory and the actual movement of an anti- warship missile more congistent, three-dimensional relative movement model is built for anti-warship missile tracking virtual target. The requirements of miss distance and terminal angle are considered in the guidance law design to ensure that four phases of large-airspace varying trajectory transfer smoothly. Three-dimensional extended proportional navigation guidance law is solved by Lyapunov stability theory. Overload control commands are designed for the four phases of large-airspace varying trajectory, and then a simulation research is conducted. The simulation resuhs show that the proposed three-dimensional extended proportional navigation guidance law can guide anti-warship missile to complete large-airspace flight task and ensure that all its performance satisfy the requirements.