空地制导武器侵彻战斗部为达到最佳毁伤效能,在保证精度的同时,对落角提出了严格的要求。首先基于二次型最优理论推导了满足落点及落角约束的最优制导律。以远程图像制导空地导弹为背景开展攻顶弹道方案研究,针对纯惯导使用条件要求,提出了末导时间tgo算法,同时制导律参数以导引头框架角约束实现自适应。通过仿真计算验证弹道方案的可行性。

In order to achieve best damage effect for air-to-ground guided weapons, both terminal impact angle and precision were constrained strictly. Firstly, derivation of the optimal guidance law with impact position and angle constrained based on linear quadratic performance index was conducted. Then, the trajectory scheme for imaging guidance air-to-ground missile was studied. A new time-to-go algorithm was put forward to satisfy the work condition of navigation without GPS and guidance law parameter changed by the gimbal angle of seeker. The simulation results show that the trajectory project is feasible.