基于B-Splines网络的飞行姿态控制器设计

设计了一种自适应飞行姿态控制器,在某一飞行条件下,建立了某型飞机的滚转通道动态逆模型,针对动态逆控制需要获得飞机精确数学模型的难点,基于B-Splines函数,构建了B-Splines网络,在线逼近模型逆误差,并根据李亚普诺夫能量函数推导了B-Splines网络权值的更新算法,确保模型跟踪误差和网络权值的有界性。仿真结果表明,该控制器能够对模型逆误差快速自适应,系统对输入命令有较好的响应特性。

Design of an Attitude Control System Based on B-Splines Network

A kind of adaptive attitude control system is designed.The dynamic model inversion of roll channel is constructed.The main drawback to the dynamic inversion is requiring accurate knowledge of the plant dynamics,so the B-Splines network is designed based on B-Splines basis functions,and it is used to compensate inversion error.The network weights adaptation law is derived by using a Lyapunov energy functuion.Lyapunov analysis guarantees the boundedness of tracking errors and network parameters.It is demonstrated by digital simulation that the adaptive attitude control system can adapt to model inversion error rapidly,and that the responses to commanded signals are satisfactory.