可重复使用运载器预测-校正再入制导研究

Study of Predictor-Corrector Reentry Guidance for Reusable Launch Vehicles

研究了可重复使用运载器的预测-校正再入制导方案。通过对运动方程积分预测飞行器在能量管理段界面处的终端状态,实时调整迎角和倾侧角方案,以使终端状态误差满足要求。对预测-校正算法的实时性问题进行了分析,并给出了解决方案。仿真结果表明,对于不同的初始再入条件,制导方案都可以将飞行器导引到能量管理段界面。

The predictor-corrector reentry guidance algorithm for reusable launch vehicles was studied. The terminal states of the vehicle at the TAEM （ terminal area energy management） interface box were predicted through the integration of the equation of motion, and to correct the state errors which the angle of attack and the bank angle were corrected in real time. The property of the real time for the algorithm was analyzed, and proper schemes were given. A number of simulation runs show that in a variety of initial reentry conditions the vehicle can achieve the TAEM interface with this approach.