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Surface adjustment strategy for a large radio telescope with adjustable dual reflectors
Lian, Peiyuan Wang, Congsi Xue, Song Xu, Qian Shi, Yu Jia, Yu Xiang, Binbin Wang, Yan Yan, Yuefei
Lian, Peiyuan
Wang, Congsi
Xue, Song
Xu, Qian
Shi, Yu
Jia, Yu
Xiang, Binbin
Wang, Yan
Yan, Yuefei
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2019-08-15
Submitted Date
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Abstract
With the development of large-aperture and high-frequency radio telescopes, a surface adjustment procedure for the compensation of surface deformations has become of great importance. In this study, an innovative surface adjustment strategy
is proposed to achieve an automated adjustment for the large radio telescope with adjustable dual reflectors. In the proposed
strategy, a high-precision and long-distance measurement instrument is adopted and installed on the back of the sub-reflector to measure the distances and elevation angles of the target points on the main reflector. Here, two surface adjustment purposes
are discussed. The first purpose is to ensure that the main reflector and sub-reflector are always positioned at their ideal
locations during operation. The second purpose is to adjust the main reflector to the location of the best fitting reflector, and the sub-reflector to the focus of the best fitting reflector. Next, the calculation procedures for the adjustments of the main reflector and the sub-reflector are discussed in detail, and corresponding simulations are carried out to verify the proposed method. The results show that the proposed strategy is effective. This study can provide helpful guidance for the design of automated surface adjustments for large telescopes.
Citation
Lian, P., Wang, C., Xue, S., Xu, Q., Shi, Y., Jia, Y., ... & Yan, Y. (2019). Surface adjustment strategy for a large radio telescope with adjustable dual reflectors. IET Microwaves, Antennas & Propagation, 13(15), 2669-2677.
Publisher
IET
Journal
IET Microwaves, Antennas & Propagation
Research Unit
DOI
10.1049/iet-map.2019.0387
PubMed ID
PubMed Central ID
Type
Article
Language
Description
This paper is a preprint of a paper accepted by IET Microwaves, Antennas and Propagation and is subject to Institution of Engineering and Technology Copyright. When the final version is published, the copy of record will be available at the IET Digital Library.
Series/Report no.
ISSN
EISSN
1751-8733