不同制导信息带落角约束末制导律设计

摘要

对地制导武器在命中目标时,不仅希望得到最小的脱靶量,还希望命中目标时弹体姿态最佳,从而使战斗部能够充分发挥其作战效能,取得最佳毁伤效果,这就对导引任务的实现增加了终端角度约束.然而传统的导引方法并不能满足这一需求,所以带落角约束的制导律研究就显得尤为重要.本文根据反辐射制导武器导引头特点,在不同的制导信息下,引入了两种具有终端角度约束的导引律,并给出了详细的推导.最后通过仿真对这两种导引律的制导性能和适用条件进行了比较.仿真结果表明,以角度为制导信息的角度反馈型制导律具有计算量小,容易实现等优点,且在引入导引头测角误差后,对导引头的测角误差具有较大的鲁棒性.%The lethality of to -ground weapons is not only dependent on the precision (with miss distance as zero) , but also on the angle of fall. This demand increases an angular constraint to the implementation of guiding task. Nevertheless, the traditional guidance law cannot always meet this demand. So the research on guidance with terminal angular constraint is particularly important. According to the characteristic of Anti - Radiation Missile's seeker, this paper presented two kinds of guidance laws with terminal angular constraint. Firstly, the detailed deducing was given step by step. Then, simulations were carried out to compare the guidance performances and application conditions of the two guidance laws. The simulation results show that the guidance law using angular as guidance information shows the advantages of small amount of calculation, easy to implement and good performance of robustness for angle measurement error.