A Variable Parameter Linear Tracking Differentiator and Its Application in Large Ground-based Telescopes

作     者：Xiao-Xia Yang Yong-Ting Deng Jian-Li Wang Bin Zhang Xiao-Xia Yang;Yong-Ting Deng;Jian-Li Wang;Bin Zhang

作者机构：Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2022年第22卷第12期

页      面：273-283页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported in part by the National Natural Science Foundation of China under Nos.12122304 and 11973041 in part by the Youth Innovation Promotion Association CAS,under No.2019218 

主　　题：methods:data analysis methods:analytical methods:numerical telescopes 

摘      要：This paper is concerned with the characteristics of a tracking differentiator(TD)in arranging transition process for the physical *** order to overcome disadvantages of linear TD(LTD)in practice,a novel variable parameter linear tracking differentiator(VLTD)is *** designing the speediness factor as a function of the tracking error,the VLTD can track a large range of set values with reasonable speed and *** shows that VLTD can converge to its set value under certain ***,the speed and acceleration bounds are added to the VLTD,which guarantees that the proposed transition signal really plays a transitional *** numerical simulation results emphasize necessity for adding speed and acceleration bounds to the *** comparing VLTD with the nonlinear TD(NLTD)in the simulations and experiments,VLTD can achieve almost the same performance as the NLTD while it is easier to be implemented.