Beam pointing analysis and a novel coarse pointing assembly design in space laser communication | |
Zhang, Fu rui1,2; Han, Jun-feng1; Ruan, Ping1 | |
作者部门 | 光电跟踪与测量技术研究室 |
2019-07 | |
发表期刊 | Optik |
ISSN | 00304026 |
卷号 | 189页码:130-147 |
产权排序 | 1 |
摘要 | Nowadays, Small satellites take with high precision and lightweight laser communication terminals become a hot research direction. In this work, factors affecting beam pointing performance have been studied and a novel coarse pointing assembly (CPA) is designed based on flexure technology. The beam pointing performance is influenced by three aspects: Rayleigh distribution pointing error composed of static bias error and dynamic jitter, coupled motion between optical terminal and satellite and point ahead angle. Based on beam pointing requirements, a novel 2-D spatial flexure parallel coarse pointing assembly is proposed. Firstly, the type synthesis of this mechanism is performed and the freedom is verified by screw method. Then the detailed structural design is given. The pivotal component-elliptic arc flexure hinge is optimized by genetic algorithm and its rotation accuracy is less than 10 um. A flexure rod is used in actuating legs which is made rigid by spatial pseudo-rigid body method in kinematic analysis process. Finally, both of forward kinematics and inverse kinematics have been mathematically analyzed and the virtual prototype simulation is performed in Adams. The rotational accuracy can reach to 3 μrad. The position, velocity and acceleration motion curves shown that the platform moves stable which means it's easy to control. This work provides a new idea for future design of space optical communication terminal. © 2019 Elsevier GmbH |
关键词 | Space laser communication Coarse pointing assembly Flexible mechanism Beam pointing Kinematic analysis |
DOI | 10.1016/j.ijleo.2019.05.079 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000481976900017 |
出版者 | Elsevier GmbH |
EI入藏号 | 20192206993443 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/31531 |
专题 | 光电跟踪与测量技术研究室 |
通讯作者 | Zhang, Fu rui |
作者单位 | 1.Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China |
推荐引用方式 GB/T 7714 | Zhang, Fu rui,Han, Jun-feng,Ruan, Ping. Beam pointing analysis and a novel coarse pointing assembly design in space laser communication[J]. Optik,2019,189:130-147. |
APA | Zhang, Fu rui,Han, Jun-feng,&Ruan, Ping.(2019).Beam pointing analysis and a novel coarse pointing assembly design in space laser communication.Optik,189,130-147. |
MLA | Zhang, Fu rui,et al."Beam pointing analysis and a novel coarse pointing assembly design in space laser communication".Optik 189(2019):130-147. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Beam pointing analys(3800KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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