Neuroadaptive high-order fully-actuated system approach for roll autopilot with unknown uncertainties

被引:2
作者
Wang, Wei [1 ]
Chen, Shiwei [1 ]
Shi, Zhongjiao [1 ]
Wang, Yuchen [1 ]
机构
[1] Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China
基金
中国国家自然科学基金;
关键词
High-order fully actuated system; Radial basis function neural network; Nonlinear disturbance observer; Roll autopilot; NONLINEAR-SYSTEMS; FLIGHT CONTROL; GUIDANCE LAW; DESIGN;
D O I
10.1016/j.ast.2024.109567
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
In this paper, a neuroadaptive high-order fully-actuated system approach control scheme incorporating the disturbance observer technique is proposed for the missile roll autopilot, subject to model uncertainties generated by the induced roll moment, along with actuator control efficiency deterioration and external disturbance. To address model uncertainties, the radial basis function neural network is implemented. The external disturbance and approximation error are treated as compound disturbances and estimated by a nonlinear disturbance. To avoid the "differential explosion" inherent in the backstepping technique, the high-order fully-actuated system approach is invoked to track the desired roll angle command. The semi-globally uniformly bounded of the closed- loop system is demonstrated via the Lyapunov method. Numerous simulations under various conditions have been conducted to verify the effectiveness of the proposed roll autopilot.
引用
收藏
页数:12
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