A Correction Method of Estimating the Pointing Error for Reflector Antenna
文献类型：期刊论文
| 作者 | Zhang, Jie1,2; Huang, Jin1; Liang, Wei1; Zhang, Youran1; Xu, Qian2 ; Yi, Letian2; Wang, Congsi1
|
| 刊名 | Shock and Vibration
 |
| 出版日期 | 2018-05-30 |
| 卷号 | 2018页码:3262869 |
| 关键词 | Acoustics Engineering Mechanics |
| ISSN号 | 1070-9622 |
| DOI | 10.1155/2018/3262869 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | The pointing error caused by the structural deformation of large reflector antennas has become the most challenging problem of antenna servo control. Especially with the increase of the antenna diameter and the working frequency, environmental loads not only make the structure deformation more obvious, but also make the pointing accuracy influenced by deformation more sensitive. In order to solve this problem, accurately estimating the pointing error caused by the structural deformation is the key. Based on the dynamic model of antenna structure and the analyzing model of pointing error, using the displacement information of sampling points on reflector, this paper proposes a correction method to achieve the purpose of accurately estimating the pointing error caused by the structural deformation. Using a 7.3-m Ka band antenna, the results show that the antenna maximum pointing error in theoretical model calculation is 0.0041 degrees at 10m/s wind speed condition; however, the corrected pointing error would be about 0.0054 degrees with considering the modeling error. After compensating the controller, the pointing error could be reduced to only 0.0008 degrees and the performance of antenna pointing was improved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000434845700001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/3245]  |
| 专题 | 新疆天文台_射电天文研究室 新疆天文台_110米口径全可动射电望远镜（SmART）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 射电天文天线组 |
| 作者单位 | 1.Key Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi’an 710071, China; 2.Xinjiang Astronomical Observatory, Chinese Academy, Xinjiang 830011, China |
| 推荐引用方式 GB/T 7714 | Zhang, Jie,Huang, Jin,Liang, Wei,et al. A Correction Method of Estimating the Pointing Error for Reflector Antenna[J]. Shock and Vibration,2018,2018:3262869. |
| APA | Zhang, Jie.,Huang, Jin.,Liang, Wei.,Zhang, Youran.,Xu, Qian.,...&Wang, Congsi.(2018).A Correction Method of Estimating the Pointing Error for Reflector Antenna.Shock and Vibration,2018,3262869. |
| MLA | Zhang, Jie,et al."A Correction Method of Estimating the Pointing Error for Reflector Antenna".Shock and Vibration 2018(2018):3262869. |
入库方式： OAI收割
来源：新疆天文台
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