基于全通道耦合特征模型的高超飞行器控制研究

建立了"类X-20"高超声速飞行器的动力学模型,针对攻角、侧滑角和滚转角三通道之间的强耦合性,提出了一种同时考虑状态耦合和输入耦合的全通道耦合特征模型,基于此特征模型设计由多输入多输出黄金分割自适应控制律、微分控制律和积分控制律相结合的组合控制器.最后,分别对精确模型和干扰模型进行仿真,验证控制器的跟踪能力及鲁棒性,并与单通道控制器比较,结果表明全通道耦合特征模型控制器在高超声速飞行器姿态控制方面具有明显优越性.

The Hypersonic Vehicle Control Based on the All-Channel-Coupled Characteristic Model

Considering that attack angle,sideslip angle and roll angle have obvious coupled feature,a dynamics model of ＂X-20-like＂hypersonic vehicle is established in this paper firstly,then an all-channel-coupled characteristic model considering coupled states and coupled inputs be proposed.After that,a controller combined with multi-input multi-output（MIMO） golden section adaptive control law,derivative control law and integral control law is designed for the system.At last,tracking ability and robustness of the controller are approved by simulations of both accurate model and interference model.Simulations also show that the all channel-coupled characteristic model controller is better for attitude control of hypersonic vehicles than the single channel one.