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A Tracking Imaging Control Method for Dual-FSM 3D GISC LiDAR
Cao, Yu1,2,3,4; Su, Xiuqin1; Qian, Xueming2; Wang, Haitao1; Hao, Wei1; Xie, Meilin1; Feng, Xubin1; Han, Junfeng1; Chen, Mingliang5; Wang, Chenglong5
作者部门光电跟踪与测量技术研究室
2022-07-01
发表期刊Remote Sensing
ISSN20724292
卷号14期号:13
产权排序1
摘要

In this paper, a tracking and pointing control system with dual-FSM (fast steering mirror) composite axis is proposed. It is applied to the target-tracking accuracy control in a 3D GISC LiDAR (three-dimensional ghost imaging LiDAR via sparsity constraint) system. The tracking and pointing imaging control system of the dual-FSM 3D GISC LiDAR proposed in this paper is a staring imaging method with multiple measurements, which mainly solves the problem of high-resolution remote-sensing imaging of high-speed moving targets when the technology is transformed into practical applications. In the research of this control system, firstly, we propose a method that combines motion decoupling and sensor decoupling to solve the mechanical coupling problem caused by the noncoaxial sensor installation of the FSM. Secondly, we suppress the inherent mechanical resonance of the FSM in the control system. Thirdly, we propose the optical path design of a dual-FSM 3D GISC LiDAR tracking imaging system to solve the problem of receiving aperture constraint. Finally, after sufficient experimental verification, our method is shown to successfully reduce the coupling from 7% to 0.6%, and the precision tracking bandwidth reaches 300 Hz. Moreover, when the dis-tance between the GISC system and the target is 2.74 km and the target flight speed is 7 m/s, the tracking accuracy of the system is improved from 15.7 μrad (σ) to 2.2 μrad (σ), and at the same time, the system recognizes the target contour clearly. Our research is valuable to put the GISC technology into practical applications. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

关键词3D GISC LiDAR dual-FSM tracking and aiming FSM feedback decoupling composite axis control remote-sensing imaging
DOI10.3390/rs14133167
收录类别SCI ; EI
语种英语
WOS记录号WOS:000824155500001
出版者MDPI
EI入藏号20222812346284
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/96061
专题光电跟踪与测量技术研究室
通讯作者Cao, Yu
作者单位1.Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an; 710119, China;
2.School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an; 710049, China;
3.University of Chinese Academy of Sciences, Beijing; 100049, China;
4.CAS Key Laboratory of Space Precision Measurement Technology, Xi’an; 710119, China;
5.Key Laboratory for Quantum Optics and Center for Cold Atom Physics of CAS, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai; 201800, China
推荐引用方式
GB/T 7714
Cao, Yu,Su, Xiuqin,Qian, Xueming,et al. A Tracking Imaging Control Method for Dual-FSM 3D GISC LiDAR[J]. Remote Sensing,2022,14(13).
APA Cao, Yu.,Su, Xiuqin.,Qian, Xueming.,Wang, Haitao.,Hao, Wei.,...&Wang, Chenglong.(2022).A Tracking Imaging Control Method for Dual-FSM 3D GISC LiDAR.Remote Sensing,14(13).
MLA Cao, Yu,et al."A Tracking Imaging Control Method for Dual-FSM 3D GISC LiDAR".Remote Sensing 14.13(2022).
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