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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (8): 1627-1633.doi: 10.3969/j.issn.1000-1093.2019.08.010

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Research on GNSS Satellite-ground Service Information Transmission Scheduling Method Based on Inter-satellite Link

SONG Weilin1, YANG Daoning2   

  1. (1.School of Economics and Management, Beihang University, Beijing 100191, China;2.Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China)
  • Received:2019-04-29 Revised:2019-04-29 Online:2019-10-15

Abstract: The inter-satellite link is one of the main technical features of modern satellite navigation systems. A scheduling mathematical model is designed for the service information transmission scheduling problem of satellite navigation system with inter-satellite link. Based on this, a heuristic scheduling algorithm is proposed. Based on scene settings of Beidou-3 satellite navigation system, the model and algorithm are simulated and verified. The simulated results show that the proposed method can be used to schedule the service information transmission of 30 satellites in the satellite navigation system under the condition of regional monitoring network consisting of three ground stations in Beijing, Xinjiang and Hainan. And the scheduling results satisfy the mission requirements of satellite navigation system. The average number of ground station antennas is 15.375 in each mission period, and the utilization rate of most ground station antennas is over 70%. Key

Key words: satellitenavigation, inter-satellitelink, scheduling, Beidou

CLC Number: