Observer-based robust high-order fully actuated attitude autopilot design for spinning glide-guided projectiles  

作　　者：Wei Wang Yuchen Wang Shiwei Chen Yongcang Guo Zhongjiao Shi 

机构地区：[1]School of Aerospace Engineering,Beijing Institute of Technology,Beijing 10081,China [2]Northwest Industries Group CO.,Ltd.,Xi'an 710043,China

出　　处：《Defence Technology（防务技术）》2024年第4期282-294,共13页Defence Technology

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52272358 and 62103052)。

摘　　要：This paper investigates the design of an attitude autopilot for a dual-channel controlled spinning glideguided projectile(SGGP),addressing model uncertainties and external disturbances.Based on fixed-time stable theory,a disturbance observer with integral sliding mode and adaptive techniques is proposed to mitigate total disturbance effects,irrespective of initial conditions.By introducing an error integral signal,the dynamics of the SGGP are transformed into two separate second-order fully actuated systems.Subsequently,employing the high-order fully actuated approach and a parametric approach,the nonlinear dynamics of the SGGP are recast into a constant linear closed-loop system,ensuring that the projectile's attitude asymptotically tracks the given goal with the desired eigenstructure.Under the proposed composite control framework,the ultimately uniformly bounded stability of the closed-loop system is rigorously demonstrated via the Lyapunov method.Validation of the effectiveness of the proposed attitude autopilot design is provided through extensive numerical simulations.

关 键 词：Spinning glide-guided projectile Attitude control Sliding mode disturbance observer Fixed-time stable theory High-order fully actuated approach 

分 类 号：TJ413.6[兵器科学与技术—火炮、自动武器与弹药工程]