带末端角度约束的空地反辐射导弹被动制导律

Passive guidance law for air-to-ground anti-radiation missile with terminal angular constraint

针对被动跟踪问题,结合UKF和PF滤波各自优点,采用了UPF滤波器对弹目相对运动信息进行了精确估计。针对滤波器估计过程中,对系统状态可观测性的要求,在分析了系统可观测条件的基础上,结合空地反辐射导弹特点,设计了一种带末端角度约束,且能够增强系统状态可观测性的被动制导律。仿真结果表明,UPF滤波器结合所设计的被动制导律能有效准确地估计弹目相对运动信息,实现了精确制导,同时能有效地约束末端攻击角度,保证了空地反辐射导弹的杀伤效果。

For passive tracing problem,combined with the advantages of UKF and PF filters,an UPF filter was adopted to realize the accurate estimation of the information of missile-target relative movement. For the requirement of the observability of system states during estimating,combined with the characteristic of air-to-ground anti-radiation missile,a passive guidance law with terminal angular constraint and observability enhancement was designed. The simulation result shows that the UPF filter combined with the designed passive guidance law can estimate the relative information accurately and effectively and realize accurate guidance. Meanwhile,with effective terminal angular constraint,the damage effect of the missile is guaranteed.