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基于主动反射面主动形变的相位恢复全息法研究
Alternative TitleThe Research of Phase Retrieval Holography Method Based on the Active Deformation of the Active Reflector Surface
王志桥1,2; 陈卯蒸1; 裴鑫1; 王军1,3
2017-09-01
Source Publication天文学报
ISSN0001-5245
Volume58Issue:5Pages:56-66
Contribution Rank1
Abstract

大口径射电望远镜的表面精度是影响天线性能的重要因素之一,受面板加工、安装以及重力、温度和风载的影响,极大地限制了天线的观测效率.基于较副面六联杆更加精确可控的主动面技术,首次采用泽尼克(Zernike)多项式表示连续变化的主动形变相位因子,通过调整主动面获取远场幅值,即可检测表面误差.通过建立数值仿真模型,计算了任意表面形变的恢复误差,并研究了在多种连续主动面变化下的表面形变恢复效果.结果表明此方法可以稳定精准地检测表面形变,从而有效提高射电望远镜的观测效率.

Other Abstract

The surface accuracy of a large reflector radio telescope is one of the important factors influencing the performance of the antenna. The effects of panel processing, installation, as well as gravity, temperature, and wind load, will greatly limit the observation efficiency of the antenna. Focused on the technology of active surface which is more accurately controllable than the minor reflector surface of six-pole, the continuous distribution of active deformation phase factor described by Zernike polynomials is adopted for the first time. Only getting the far field amplitude through adjusting the active surface, the surface error can be detected. By building the models of numerical simulation, the retrieval error of arbitrary surface deformation is calculated, and the retrieval results of surface deformation in a variety of continuous active surface deformation is also studied. It is indicated that this method can stably and accurately detect surface deformation, and can also improve the efficiency of radio telescope observations effectively.

Correspondent Emailpeixin@xao.ac.cn
Keyword望远镜 方法:数据分析 物理数据及处理
DOI10.15940/j.cnki.0001-5245.2017.05.004
URL查看原文
Indexed ByCSCD ; 中文核心期刊要目总览
Language中文
WOS Keyword望远镜 ; 方法:数据分析 ; 物理数据及处理
CSCD IDCSCD:6077600
Funding Organization国家重点基础研究发展计划(2015CB857100) ; 中国科学院天文台站设备更新及重大仪器设备运行专项经费 ; 国家自然科学基金项目(11403091、11253001、U1431230)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/1812
Collection射电天文研究室_微波技术实验室
射电天文研究室
Corresponding Author裴鑫
Affiliation1.中国科学院新疆天文台乌鲁木齐830011
2.新疆大学物理科学与技术学院乌鲁木齐830046
3.中国科学院大学北京100049
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
王志桥,陈卯蒸,裴鑫,等. 基于主动反射面主动形变的相位恢复全息法研究[J]. 天文学报,2017,58(5):56-66.
APA 王志桥,陈卯蒸,裴鑫,&王军.(2017).基于主动反射面主动形变的相位恢复全息法研究.天文学报,58(5),56-66.
MLA 王志桥,et al."基于主动反射面主动形变的相位恢复全息法研究".天文学报 58.5(2017):56-66.
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