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An Autonomous On-Board Clock Calibration Method Based on the Lunar Occultation

  • Liu Yue*
  • , Jing Wuxing
  • , Qian Yingjing
  • *Corresponding author for this work
  • DFH Satellite Co., Ltd.
  • Beijing University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The autonomous planning and scheduling of the satellite is highly dependent on the accuracy of the on-board clock which, however, needs to be calibrated by the external information such as Global Navigation Satellite System (GNSS) or Ground time service system. To solve this problem, this paper proposes an autonomous on-board clock calibration method by observing the Lunar occultation. The steps of the time calibration are given. The crude time, firstly, is estimated by the combination of star trackers and sun sensors. Then the accurate time can be given by predicting and detecting the Lunar occultation. Meanwhile, the effects of the attitude sensor precision on the time calibration are studied. Finally, the validity of the on-board autonomous time calibration algorithm is verified by simulation.

Original languageEnglish
Title of host publicationAdvances in Guidance, Navigation and Control - Proceedings of 2020 International Conference on Guidance, Navigation and Control, ICGNC 2020
EditorsLiang Yan, Haibin Duan, Xiang Yu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages4807-4815
Number of pages9
ISBN (Print)9789811581540
DOIs
StatePublished - 2022
EventInternational Conference on Guidance, Navigation and Control, ICGNC 2020 - Tianjin, China
Duration: 23 Oct 202025 Oct 2020

Publication series

NameLecture Notes in Electrical Engineering
Volume644 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

ConferenceInternational Conference on Guidance, Navigation and Control, ICGNC 2020
Country/TerritoryChina
CityTianjin
Period23/10/2025/10/20

Keywords

  • Autonomous
  • Clock calibration
  • Lunar occultation
  • On-board

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