For the requirements of against near space high-speed targets and direct collision, the missile-target three dimensional motion rule and constructed missile equations of motion are researched, and by using sliding mode theory and the optimal contrd theory, the terminally guidance law to against high-speed targets is designed. Simulation results show that the guidance law can meet the requirements of direct collision in the situation of target maneuver, the control capacity dithering is within the scope per- mitted.%针对反临近空间高速目标和直接碰撞的要求，研究了弹目三维运动规律，构造了导弹运动方程，并利用滑模变结构理论和最优控制理论，设计了反高速末制导律。仿真结果表明，该制导律能够在目标机动的情况下满足直接碰撞的要求，控制量抖动也在允许的范围之内。
展开▼
