基于SDRE方法的高超声速飞行器姿态控制

摘要

For the coupling phenomenon of the attitude movement of hypersonic vehicle, the control limit of a hypersonic vehicle is obtained using criterion of dynamic stability. State-Dependent Riccati Equation (SDRE) method is used to control hypersonic vehicle’s attitude and is contrasted with PID control method. The simulated results show that the method of SDRE has certain robust characteristics and has an advantage over the method of PID.%针对高超声速飞行器的姿态运动中强耦合的现象，利用动稳定判据，得到飞行器的控制需求。采用状态相关黎卡提方程（State-Dependent Riccati Equation，SDRE）方法进行控制，并且与传统的PID控制方法设计的控制器进行对比分析。仿真结果表明SDRE方法具有一定的鲁棒性，较PID方法有一定的优势。