基于加速度测量的高超声速飞行器抗干扰控制

针对吸气式高超声速飞行器气动特性复杂且不确定性强的特点，提出了一种基于加速度测量信号，包括内、外双回路设计的反步抗干扰控制方案。外回路在反步法中引入传感器所测加速度信号，并设计非线性干扰观测器对复合干扰进行观测与补偿；内回路设计采用基于奇异摄动理论的动态逆方法，利用Lyapunov理论证明了系统的一致最终有界。该控制方案均基于传感器可以直接测得的信号构成控制，对气动参数不确定鲁棒性强，且通过干扰观测进一步提高系统抗干扰能力。仿真结果表明，反步抗干扰控制方案在强不确定性与外部干扰条件下，可获得理想的控制效果。

Anti-disturbance Control for Hypersonic Vehicles Based on Acceleration Measurement

An anti-disturbance backstepping control scheme based on acceleration measurement is proposed for the complexity and uncertainty of the aerodynamic characteristics of air-breathing hypersonic vehicle（AHV）. The control scheme includes both internal and external loop designs. The external loop introduces the measured acceleration signals of sensor in the backstepping method. And a nonlinear disturbance observer is designed to observe and compensate the composite disturbance. The dynamic inversion method based on singular perturbation theory is used for the internal loop design. The Lyapunov theory is used to prove the uniformly ultimately bounded stabilization. In this scheme, the control signal is totally constituted by signals which can be directly measured by sensors. The controller has high robustness for the uncertainty of aerodynamic parameters. Moreover, the anti-disturbance capacity is improved by the disturbance observer. The simulated results demonstrate that the control scheme can obtain desired control performance considering high uncertainty and external disturbance.