一种基于零控脱靶量的滑模末制导律设计

Design of a Sliding Terminal Guidance Law Based on Zero Effort Miss

基于零控脱靶量的思想,提出一种能够有效针对大气层再入目标的滑模末制导律。首先,建立纵向平面内的弹目相对运动方程;然后利用扩张状态观测器对目标机动加速度信息进行估计,并对零控脱靶量算法进行分析,提出了制导律的设计思路;接着利用滑模变结构控制理论进行制导律的推导;最后进行仿真分析,仿真结果证明,所设计的制导律能够很好地对目标弹进行拦截,并且指令的跟踪效果也很好,从而验证了算法的有效性。

One algorithm of sliding terminal guidance law, which can of the reentry aerosphere, is devised based on the zero effort miss （ZEM）. sile and target movement is built; then, the target acceleration information tended state observer （ESO） , and the zero effort miss algorithm is analyzed signing is carried out; then the guidance law is reduced by using the back simulation result shows that the designed mand can track the actual command well guidance law interc so that the validity ept of so that the thinking of the destepping control; at last, the target effectively and the virtual comalgorithm is tested.