中文摘要：

针对一类导弹自动驾驶仪系统，从实际出发考虑系统舵角输入具有饱和非线性特性，在系统建模中利用多项式模型充分描述系统的气动参数不确定性，在此基础上深入研究了系统自适应控制器的设计方法．在控制器设计中，通过引入二阶辅助信号系统，对饱和非线性输入进行精确补偿．针对系统中未知气动参数，通过设计参数的自适应估计率实现对未知参数的精确估计，进而补偿了未知气动参数不确定性影响．自适应控制器在保障系统稳定的同时也实现了系统输出对指令信号的良好跟踪效果．

英文摘要：

The design of adaptive controller is studied for a class of missile autopilot systems with saturation actuator and aerodynamics uncertainties. In controller design, the effect of saturation is compensated by introducing an auxiliary signal system. Unknown aerodynamics parameters are estimated during system operation by designing adaptive estimators. The stability of missile autopilot system can be ensured by this proposed adaptive control law.