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A novel interplanetary optical navigation algorithm based on Earth-Moon group photos by Chang'e-5T1 probe

机译:Chang娥5T1探测器基于月球群照的新型星际光学导航算法。

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摘要

This paper presents an interplanetary optical navigation algorithm based on two spherical celestial bodies. The remarkable characteristic of the method is that key navigation parameters can be estimated depending entirely on known sizes and ephemerides of two celestial bodies, especially positioning is realized through a single image and does not rely on traditional terrestrial radio tracking any more. Actual Earth-Moon group photos captured by China's Chang'e-5T1 probe were used to verify the effectiveness of the algorithm. From 430,000 km away from the Earth, the camera pointing accuracy reaches 0.01° (one sigma) and the inertial positioning error is less than 200 km, respectively; meanwhile, the cost of the ground control and human resources are greatly reduced. The algorithm is flexible, easy to implement, and can provide reference to interplanetary autonomous navigation in the solar system.
机译:本文提出了一种基于两个球形天体的星际光学导航算法。该方法的显着特点是,可以完全根据两个天体的已知大小和星历来估算关键导航参数,尤其是通过单个图像即可实现定位,并且不再依赖于传统的地面无线电跟踪。用中国的-5娥5T1号探测器捕获的实际月球集体照片来验证该算法的有效性。在距地球430,000 km处,摄像机的指向精度分别达到0.01°(1 sigma),并且惯性定位误差分别小于200 km;同时,大大降低了地面控制和人力资源的成本。该算法灵活,易于实现,可以为太阳系中的行星际自主导航提供参考。

著录项

  • 来源
    《Advances in space research》 |2017年第3期|907-915|共9页
  • 作者单位

    Aerospace Flight Dynamics Laboratory, Beijing Aerospace Control Center, Beijing 100094, China ,Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;

    Department of Spacecraft Management, Beijing Aerospace Control Center, Beijing 100094, China;

    Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;

    Aerospace Flight Dynamics Laboratory, Beijing Aerospace Control Center, Beijing 100094, China;

    Department of Spacecraft Management, Beijing Aerospace Control Center, Beijing 100094, China;

    Department of Spacecraft Management, Beijing Aerospace Control Center, Beijing 100094, China;

    Department of Spacecraft Management, Beijing Aerospace Control Center, Beijing 100094, China;

    Chinese Academy of Sciences, Beijing 100101, China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Interplanetary voyage; Optical navigation; Two celestial bodies; Sphere;

    机译:行星际航行;光学导航;两个天体;球;

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