An improved feedforward controller design method

doi:10.1117/12.2506253

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 光电工程总体研究室（一室）

	An improved feedforward controller design method
	He, Qiunong 1,2,3; Mao, Yao 2,3; Zhou, Xi 2,3; Li, Zhijun 2,3; Zhang, Chao 2,3
	2019
会议日期	June 26, 2018 - June 29, 2018
会议地点	Chengdu, China
关键词	position feedforward optical control system angular position sensors Kalman filter
卷号	10839
DOI	10.1117/12.2506253
页码	1083917
英文摘要	In this paper, there is a control system which has a strict requirement on the system load and a limited installation space for the sensors. According to the conditions of this system, the scheme by only installing a group of angular position sensors on this system is proposed. Nevertheless, the tracking performance of the system is limited by the time delay of the CCD, the traditional feedback control methods cannot meet the requirements of the system tracking accuracy. The feedforward method can theoretically improve the tracking performance without affecting the dynamic performance of the system. Unfortunately, the feedforward control method requires accurate target state information, and the CCD can only detect the light-of-sight error of the target. Therefore, we propose recovering the target trajectory by combining LOS errors from the CCD and the platform angular position from the angular position sensors, and adding a position feedforward to the system based on a dual-closed loop of angular position sensors and CCD. In addition, there is bad noise in the target state information obtained by the fusion. Then, a Kalman filter is used in this paper to filter and estimate the target state information. Essentially, the Kalman filter is the feedforward controller of the system. In order to design a better feedforward controller, a frequency-domain analysis method for the time-domain filters is proposed. The methods proposed in this paper are verified trough simulations and experiments. © 2019 SPIE.
会议录	Proceedings of SPIE 10839 - 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment
会议录出版者	SPIE
文献子类	会议论文
语种	英语
ISSN号	0277-786X
WOS研究方向	Optics
WOS记录号	WOS:000461822400042
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9611]
专题	光电技术研究所_光电工程总体研究室（一室）
作者单位	1.University of Chinese Academy of Sciences, Beijing; 100039, China 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu; 610209, China;
推荐引用方式 GB/T 7714	He, Qiunong,Mao, Yao,Zhou, Xi,et al. An improved feedforward controller design method[C]. 见:. Chengdu, China. June 26, 2018 - June 29, 2018.