基于特征结构配置的飞翼无人机纵向控制律设计与 试飞验证

针对飞翼无人机的纵向、横侧向静稳定性较差，飞机纵向短周期模态稳定性不足等问题，以某小型飞翼无人机为对象，研究了特征结构配置方法，并提出了基于特征结构配置方法的前向增益型、误差积分型控制律设计方案；利用线性模型设计了该飞机的纵向控制律，通过非线性仿真分析、飞翼无人机的试飞验证了该控制方案的可行性与有效性；仿真及试飞结果表明：采用特征结构配置方法设计的飞行控制系统具有较好的控制效果，改善了飞翼飞机的飞行品质。

Longitudinal Control Law Design and Flight Test for a Flying Wing UAV Based on Eigenstructure Assignment

Aim at the problems of poor longitudinal static stability and deficient in short-period mode of flying wing unmanned aerial vehicle, a miniature flying wing UAV is used for investigation. The eigenstructure assignment (EA) control approach is studied. The EA based feedforward gain and error integral control schemes are presented. Using linear mode of the aircraft, the longitudinal control law is designed with aforementioned control schemes. Nonlinear simulation and flight testing are presented to verify the feasibility and effectiveness of the methods. The results show that the controller design based on EA approach demonstrates good control performance, and the flying qualities are improved.