一种同时具有攻击时间和攻击角度约束的协同制导律

为了实现多枚导弹从不同的方向对目标进行饱和攻击,建立了导弹和目标的非线性运动模型,并对模型进行归一化; 设定理想攻击时间和攻击角度,利用具有攻击时间约束的制导律得到初始猜测控制量,采用模型预测静态规划方法对控制量进行迭代更新直至满足脱靶量和角度约束条件,从而得到能够同时满足攻击时间和攻击角度约束的次优协同制导律。仿真验证结果表明:在合理给定理想攻击时间和攻击角度的前提下,本协同制导律具有良好的性能和较强的鲁棒性,且计算效率高,具有在线优化的潜力。

A Cooperative Guidance Law With Constraints of Impact Time and Impact Angle

To realize the saturation attack to the target from different directions for multiple missiles,the nonlinear motion-models of missile and target were built and normalized. To satisfy the designated impact time and impact angle,the impact-time-control guidance law was used to produce the initial guess-control-variables,and the model predictive static programming ( MPSP ) technology was adopted to calculate the control variables iteratively based on the initial guess control variables until the miss distance and angle constraints were satisfied,which formed the suboptimal cooperative guidance law with the constraints of impact time and impact angle. Simulation results show that,given reasonable designated impact time and impact angle,the cooperative guidance law is of good precision and robustness,and the law is applicable to on-line optimization due to its efficiency.