攻击大机动目标的导弹运动跟踪平滑导引律研究

Research on Motion Tracking Smooth Guidance of Missiles for Attacking Maneuvering Target

针对目前广泛应用的比例导引律、增广比例导引律、改进增广比例导引律以及运动跟踪滑模导引律(MTSMG)所存在的适应能力较差,可观测性较弱以及视线角速度容易发散等问题,提出了导弹运动跟踪的平滑导引律。该导引律方法结合运动跟踪变结构制导律和模糊控制理论,同时引入边界层技术,消除了导弹视线角增量变化律的抖动现象,且有效地提高了导弹的作战效率,缩短了导弹的拦截时间。通过仿真结果对比验证了该导引律的有效性。

To deal with the problems such as bad adaptive performances, worse visualization and divergence of line-of-sight angle existing in proportional guidance, augmented proportional guidance, modified augmented proportional navigation and motion tracking sliding-mode guidance, a motion tracking smooth guidance was proposed in the paper. This novel guidance combines the motion tracking sliding-mode guidance with fuzzy control theory, and introduces boundary layer. Simulation results show that this guidance is very effective on eliminating the ＇chatter＇ of line-of-sight angular velocity and improving the intercept efficiency of guided missiles by reducing intercept time.