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中文摘要：
针对一类多输入多输出非线性系统，设计了一种基于SDRE（state-dependent Riccati equation）的预测控制方法，并应用于空天飞行器再入过程的姿态控制律设计。SDRE是一种有效的非线性系统优化控制设计方法，利用SDRE的局部渐进稳定的特点，与有限时间预测控制律设计相结合，提出的控制方案保证闭环系统的稳定性。最后利用所提出的控制方案设计了空天飞行器飞行控制系统，并在高超声速条件下进行了仿真验证。仿真结果表明了控制方案的有效性。
英文摘要：
A receding horizon control law based on SDRE（ state-dependent Riccati equation） for a class of multi-input and multi output nonlinear systems is introduced, and the application of the control law to a reentry aerospace vehicle is presented. SDRE is a kind of effective optimal method to nonlinear systems, combined the advantage of local exponential stability with finite horizon predictive control, the presented method can guarrante the stability of closed-loop systems. Finally, the flight control system of an aerospace vehicleunder hypersonic is designed based on the proposed method. Simulation results demonstrate the effective ness.
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