Effect of the rail unevenness on the pointing accuracy of large radio telescope

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• 作者：Na Li ; ^{lina@mail.xidian.edu.cn} ; Jiang Wu ^{836640638@qq.com} ; Bao-Yan Duan ^{byduan@xidian.edu.cn} ; Cong-Si Wang ^{congsiwang@163.com}
• 关键词：Rail unevenness ; Pointing accuracy ; Large radio telescope ; Coarse-fine mixed ; Modeling
• 刊名：Acta Astronautica
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：132
• 期：Complete
• 页码：13-18
• 全文大小：1052 K
• 卷排序：132

文摘

We established the coarse-fine mixed description model of the rail unevenness. We established the influence relation function of the rail unevenness on pointing accuracy. The trigonometric function is utilized to describe the rail error of long-period-short-change. The fractal function is used for the short-period-long-change rail error.