High-precision photoelectric acquisition and tracking based on cascade sliding mode control

doi:10.3788/OPE.20202802.0350

CIOMP OpenIR

	High-precision photoelectric acquisition and tracking based on cascade sliding mode control
	J. Liu,Y.-T. Deng and H.-W. Li
	2020
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	28 期号:2 页码:350-362
摘要	A cascade sliding mode control method based on a variable gain reaching law was proposed to improve the target acquisition and tracking performance of a photoelectric tracking system. First, to reduce sliding mode chattering and improve the dynamic response speed, a novel sliding mode reaching law with variable gains was designed. The variable gains were designed based on the inverse sine and exponential functions. Then, based on the novel reaching law with variable gain, the speed and position sliding mode controllers of the system were presented. The speed and position sliding mode controllers include cascade sliding mode control, which was designed to enhance the dynamic and robust performance of the system and further improve the system target acquisition and tracking accuracy. Finally, a comparison was made between the control performance of a traditional cascade PI control and the proposed cascade sliding mode control, based on the azimuth axis of a photoelectric tracking system. The experimental results show that compared to traditional cascade PI control, cascade sliding mode control can reduce the acquisition time by 32% when detecting a target with a speed of 1 ()/s. Moreover, it can reduce the RMS of the tracking error by 31% when tracking the position sine signal with a maximum speed of 4 ()/s and a maximum acceleration of 2 ()/s2. These results indicate that cascade sliding mode control can improve the control performance of the tracking system. 2020, Science Press. All right reserved.
DOI	10.3788/OPE.20202802.0350
URL	查看原文
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64576
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Liu,Y.-T. Deng and H.-W. Li. High-precision photoelectric acquisition and tracking based on cascade sliding mode control[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2020,28(2):350-362.
APA	J. Liu,Y.-T. Deng and H.-W. Li.(2020).High-precision photoelectric acquisition and tracking based on cascade sliding mode control.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,28(2),350-362.
MLA	J. Liu,Y.-T. Deng and H.-W. Li."High-precision photoelectric acquisition and tracking based on cascade sliding mode control".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 28.2(2020):350-362.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
High-precision photo（3686KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文