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| 基于TFT-LCD的动态星模拟器星点位置修正方法 | |
| 引用本文： | 王俣,张国玉,高玉军,孙高飞,郑茹.基于TFT-LCD的动态星模拟器星点位置修正方法[J].中国光学,2011,4(3):247-251. |
| 作者姓名： | 王俣 张国玉 高玉军 孙高飞 郑茹 |
| 作者单位： | 1. 长春理工大学,吉林长春,130022 2. 长春理工大学,吉林长春130022;光电测控与光信息传输技术教育部重点实验室,吉林长春130022 3. 中国科学院,长春光学精密机械与物理研究所,吉林长春130033 |
| 摘 要： | 介绍了基于TFT-LCD的动态星模拟器的工作原理及星点位置误差的计算方法。利用经纬仪对动态星模拟器显示的网格星点进行测量,计算了各星点的位置误差及修正系数。对网格上星点的修正系数进行分区处理,并利用Matlab软件对各分区的修正系数进行曲线拟合,得到修正系数关于星点位置（方位或俯仰）坐标的方程。结果表明,修正后星点的位置误差均小于35″,满足动态星模拟器的设计要求。 |
| 关 键 词： | 动态星模拟器 经纬仪 曲线拟合 |
Star position correction of dynamic star simulator based on TFT-LCD |
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| WANG Yu,ZHANG Guo-yu,GAO Yu-jun,SUN Gao-fei,ZHENG Ru.Star position correction of dynamic star simulator based on TFT-LCD[J].Chinese Optics,2011,4(3):247-251. | |
| Authors: | WANG Yu ZHANG Guo-yu GAO Yu-jun SUN Gao-fei ZHENG Ru |
| Institution: | 1.Changchun University of Science and Technology,Changchun 130022,China; 2.Key Laboratory of Optoelectronic Measuring-controlling and Optical Information Transmiting Technology,Ministry of Education,Changchun 130022,China; 3.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China) |
| Abstract: | This paper describes the working principle of the dynamic star simulator based on a TFT-LCD and the calculation of the revised star angular distance error.A theodolite is used to measure the star point on the grid shown by the dynamic star simulator,then the position error correction factor of each star point is calculated based on the measured data.The correction coefficient of the star point on the grid is partitioned,and Matlab software is used for the curve fitting of each partition′s revised correction coefficients to get the（azimuth or elevation） coordinate equations of the star position.The experimental result shows that the revised star angular distance error is less than 35″,which meets the design requirements of the dynamic star simulator. |
| Keywords: | dynamic star simulator theodolite curve fitting |
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