基于综合识别的高速飞行器在线姿态控制方法

Online attitude control for hypersonic vehicle based on integrated identification

针对高速飞行器控制方法中控制模型难以适应大包络飞行和算法中辨识存在收敛性的问题,设计了一种基于综合识别的在线控制方案。首先,由在线直接可测量构成三通道的特征状态量,以特征状态量建立面向控制的特征模型;然后,通过反馈线性化进行通道间的解耦,采用极点配置来进行在线控制参数的实时调节。仿真结果表明,在气动参数拉偏的情况下,三个通道均取得了较好的控制效果,控制器具有快速性和鲁棒性,且易于工程实现。

Since high speed vehicle＇s traditional control method have large envelope flight and identification convergence,an online control method based on integrated identification was proposed. Firstly,online measurable quantities constituted characteristic state variables of the three-channels,which were used to build control-oriented characteristic model. Secondly,through feedback linearization decoupling between channels,use the pole placement for on-line control parameters in real time adjustment. Simulation results show that all the 3 channels are well controlled,and the controller is has a higher speed and robustness,which facilitates the engineering implementation in the case of aerodynamic parameter deviation.