测绘学报 ›› 2018, Vol. 47 ›› Issue (4): 435-445.doi: 10.11947/j.AGCS.2018.20170306

• 大地测量学与导航 • 上一篇    下一篇

超大视场测月天文定向方法

蒲俊宇, 郑勇, 李崇辉, 詹银虎, 陈少杰   

  1. 信息工程大学地理空间信息学院, 河南 郑州 450001
  • 收稿日期:2017-06-12 修回日期:2018-01-29 出版日期:2018-04-20 发布日期:2018-05-02
  • 通讯作者: 李崇辉 E-mail:lichonghui6501@126.com
  • 作者简介:蒲俊宇(1992-),男,硕士生,研究方向为天文导航。E-mail:pyf1992@126.com
  • 基金资助:
    国家自然科学基金(11673076;41604011;41704006)

Astronomical Orientation Method Based on Lunar Observations Utilizing Super Wide Field of View

PU Junyu, ZHENG Yong, LI Chonghui, ZHAN Yinhu, CHEN Shaojie   

  1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450001, China
  • Received:2017-06-12 Revised:2018-01-29 Online:2018-04-20 Published:2018-05-02
  • Supported by:
    The National Natural Science Foundation of China (Nos. 11673076;41604011;41704006)

摘要: 利用超大视场相机测月成像实现了天文定向,推导了详细的计算公式。通过实测检验了定向方法的可靠性,跟踪拍摄15 min,内符合精度优于±7.5",外符合精度约为±20"。基于相机成像的天文定向方法改变了利用经纬仪人眼照准的传统模式,一定程度上降低了对作业员的技能要求,且超大视场相机能对月球进行连续跟踪拍摄,无须复杂的伺服控制装置。由于月球上也有重力场,月球上观测地球也有地相变化,后期如能实现定向装置的自动安平,本方法同样适用于月球车对地球成像实现天文定向。

关键词: 天文定向, 超大视场, 相机, 连续跟踪, 月球

Abstract: In this paper,astronomical orientation is achieved by observing the moon utilizing camera with super wide field of view,and formulae are deduced in detail.An experiment based on real observations verified the stability of the method.In this experiment,after 15 minutes' tracking shoots,the internal precision could be superior to ±7.5" and the external precision could approximately reach ±20".This camera-based method for astronomical orientation can change the traditional mode (aiming by human eye based on theodolite),thus lowering the requirements for operator's skill to some extent.Furthermore,camera with super wide field of view can realize the function of continuous tracking shoots on the moon without complicated servo control devices.Considering the similar existence of gravity on the moon and the earth's phase change when observed from the moon,once the technology of self-leveling is developed,this method can be extended to orientation for lunar rover by shooting the earth.

Key words: astronomical orientation, super wide field of view, camera, continuous tracking, moon

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