超声速巡航弹俯冲攻击制导控制一体化设计

摘要

The integrated guidance and control(IGC) system of a supersonic cruise missile for dive-attacking was designed using sliding mode control. The iGC model of the pitch plane was formulated by combining the relative relationship and the missile dynamic equations. The adaptiveness and robustness were achieved by choosing zero-effort miss(ZEM) and other states as the sliding mode surface and considering the target maneuver as an unknown bounded disturbance. The simulation result shows that it can ensure the accuracy of hitting the maneuverable target with a desired terminal impact angular constraint, and indicate that the proposed IGC system is effective. The advantage of the proposed IGC system was verified by comparing the simulation results of the IGC system with the conventional method that designs guidance law and control system separately.%研究巡航导弹俯冲优化控制问题,针对超声速巡航导弹俯冲攻击要求,为了使战斗部发挥最大毁伤效果,运用变结构控制理论,设计了导弹纵向平面一体化制导控制系统.联立弹目相对运动方程和导弹弹体动力学方程,建立了导弹控制模型.选用零控脱靶量滑模切换面,并将目标机动考虑成有界扰动,使控制具有较强的自适应性和对目标机动性.数值仿真表明,设计的一体化制导控制系统能满足俯冲攻击的脱靶量和落角的要求,验证了方法有效.与传统的制导控制分开设计比较,采用所提出的一体化制导控制系统末段状态的变化更平缓,能获得更小的脱靶量,具有机动攻击目标的能力,并满足设计的要求.