导弹三回路自动驾驶仪的最优控制设计方法

Optimal control design method for missile three-loop autopilot

为优化自动驾驶仪设计过程,寻找最优设计参数,提出了一种基于最优控制的三回路自动驾驶仪设计方法。通过设计最优控制问题的代价函数生成三回路驾驶仪拓扑结构,并通过求解最优控制问题同时得到三回路自动驾驶仪的多个设计参数,进一步研究分析了代价函数中惩罚权重对驾驶仪性能指标的影响。实验结果表明,与传统设计方法相比,通过最优控制方法设计的三回路自动驾驶仪性能更优,且对于模型不确定性误差和系统未建模动态等具有较好的鲁棒性。

To optimize the design process of an autopilot and find the optimal design parameters,a new design method based on optimal control for a three-loop autopilot was proposed.It generates a three-loop autopilot topology by designing the cost function of the optimal control problem,and obtains multiple parameters of the three-loop autopilot by solving the optimal control problem.The impact of penalty weights in the cost function on the performance indicators of the autopilot was further studied and analyzed.Experimental results show that the three-loop autopilot designed by optimal control method has better performance compared with traditional design methods.And it also has good robustness against model-parameter uncertainties and unmodeled high-frequency dynamics of the system.