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Proceedings Paper

Modeling and correction of static pointing error of level mounting telescope
Author(s): Cheng-zhi Liu; Meng-meng Li; Zhen-wei Li
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Paper Abstract

A static pointing model was built to correct the static pointing error. The horizontal coordinate system and sighting coordinate system were constructed based on the architecture of level mounting telescope. Then derivate the conversion formula while converting the ALT-ALT coordinate system to horizontal coordinate system and got the rotated matrix which elements contain the value of the encoder and the pointing errors of the level mounting telescope when rotated horizontal coordinate system to target coordinate system also called sighting coordinate system. Obtained the static pointing model after a series of calculations,. Using the data that observed by 40 cm level mounting telescope to fitting model, and results show that improve the static pointing accuracy from 196.64′′to 4.76′′, which compared to basic parameters model and spherical model, found that the static pointing model is the best one. As well it’s enough to content the requirement that has risen.

Paper Details

Date Published: 7 November 2016
PDF: 10 pages
Proc. SPIE 10141, Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016, 1014107 (7 November 2016); doi: 10.1117/12.2255086
Show Author Affiliations
Cheng-zhi Liu, Changchun Observatory (China)
Meng-meng Li, Changchun Observatory (China)
Univ. of Chinese Academy of Sciences (China)
Zhen-wei Li, Univ. of Chinese Academy of Sciences (China)

Published in SPIE Proceedings Vol. 10141:
Selected Papers of the Chinese Society for Optical Engineering Conferences held July 2016
Yueguang Lv; Weimin Bao; Guangjun Zhang, Editor(s)

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