摘要
为提高空间激光通信跟瞄系统中快反镜(FSM)的跟踪精度和抗干扰能力,设计了新型积分快速非奇异终端滑模控制器。通过设计积分快速非奇异终端滑模面,提高了滑动模态阶段性能,同时设计新型的指数型趋近率,提高趋近阶段动态品质。利用蜻蜓算法(DA)对控制器参数进行优化,以提高系统的动态性能并保证较强的鲁棒性。针对传统蜻蜓算法的不足,对蜻蜓算法的惯性因子、队列权重、聚集权重的调整方式进行改进,并引入逐维评价机制及改进正余弦算法的位置更新机制,进一步提高蜻蜓算法的寻优能力。最后,通过仿真验证了本文方法在快反镜控制过程中的有效性。
In order to improve the tracking accuracy and anti-interference ability of the fast steering mirror(FSM)in the space laser communication tracking and aiming system,a new integral fast non-singular terminal sliding mode controller was designed.By designing an integral fast non-singular terminal sliding surface,the performance of the sliding mode stage is improved,and a new exponential convergence rate is designed to improve the dynamic quality of the convergence stage.The dragonfly algorithm(DA)was used to optimize the controller parameters,in order to improve the dynamic performance of the system and ensure strong robustness,in view of the shortcomings of the traditional DA,the adjustment methods of the inertia factor,queue weight,and aggregation weight of the DA are improved,it also introduces a dimension-by-dimension evaluation mechanism and an improved position update mechanism of the Sine cosine algorithm to further improve the optimization capability of the DA.Finally,the effectiveness of the proposed method in the fast mirror control process was verified through simulation.
作者
冯建鑫
李昊阳
巩建雄
龚柏春
FENG Jian-xin;LI Hao-yang;GONG Jian-xiong;GONG Bai-chun(Academy of Astronautics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《吉林大学学报(工学版)》
2025年第11期3745-3750,共6页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(12272168).
关键词
快速反射镜
非奇异终端滑模
积分滑模
蜻蜓算法
参数优化
fast steering mirror
nonsingular terminal sliding mode
integral sliding mode
dragonfly algorithm
parameter optimization
