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火箭军工程大学,陕西 西安 710025
[ "刘先一 (1991-),男,河南信阳人,博士研究生,2013年于第二炮兵工程大学获得学士学位,主要从事定位技术研究。E-mail:1397559188@qq.com" ]
[ "张志利 (1966-),男,河南濮阳人,博士,教授,1988年、1991年、2001年于第二炮兵工程学院分别获得学士、硕士、博士学位,主要从事定位定向、基准传递技术以及仿真技术的研究。E-mail:effortyao@163.com" ]
收稿日期:2018-12-04,
录用日期:2019-1-7,
纸质出版日期:2019-05-15
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刘先一, 张志利, 周召发, 等. 基于恒星像点轨迹的星图填补[J]. 光学 精密工程, 2019,27(5):1229-1235.
Xian-yi LIU, Zhi-li ZHANG, Zhao-fa ZHOU, et al. Star image filling based on stellar image point trajectory[J]. Optics and precision engineering, 2019, 27(5): 1229-1235.
刘先一, 张志利, 周召发, 等. 基于恒星像点轨迹的星图填补[J]. 光学 精密工程, 2019,27(5):1229-1235. DOI: 10.3788/OPE.20192705.1229.
Xian-yi LIU, Zhi-li ZHANG, Zhao-fa ZHOU, et al. Star image filling based on stellar image point trajectory[J]. Optics and precision engineering, 2019, 27(5): 1229-1235. DOI: 10.3788/OPE.20192705.1229.
数字天顶仪是一种通过拍摄星图进行定位的天文仪器,在采用数字天顶仪拍摄星图时,由于云层等外部因素会导致拍摄的星图存在星点缺失,直接影响到仪器的定位精度。为了提高仪器的实用性和对环境的适应性,本文推导了恒星像点轨迹,并提出了一种基于恒星像点轨迹的星图填补方法,该方法构建了缺失星图与相邻两幅星图之间的像点填补模型。实验数据表明,采用该方法能够对星图进行较好地填补,通过填补后的星图解算的定位误差在0.01″以内,使定位精度基本保持了不变。
Digital zenith camera is an astronomical instrument which is used to locate by taking star images. When taking a star image
there are star points missing in the star image due to external factors such as clouds
and the accuracy of positioning will be affected directly. In order to improve the practicability of the instrument and its adaptability to the environment
the stellar image point trajectory is derived and a star image filling method based on stellar image point trajectory is proposed. This method constructs a filling model between the missing star image and the adjacent two star images. The experimental data shows that the method can better fill the star image. The positioning error calculated by the filled star image is less than 0.001″. The positioning accuracy remains unchanged.
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