Routing optimization method for fast return of data on overseas satellites in Beidou Global Navigation Satellite System

doi:10.16708/j.cnki.1000-758X.2018.0002

Chinese Space Science and Technology ›› 2018, Vol. 38 ›› Issue (2): 9-15.doi: 10.16708/j.cnki.1000-758X.2018.0002

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Routing optimization method for fast return of data on overseas satellites in Beidou Global Navigation Satellite System

GAO He¹，WANG Ling¹，HUANG Wende^2,3,*，SUN Leyuan²

1. College of Electrical and Information Engineering, Hunan University, Changsha 410073, China
2. College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China
3. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China

Received:2017-07-05 Accepted:2018-01-15 Published:2018-03-25 Online:2020-02-11
Contact: 黄文德（1981-），男，博士，讲师，博士后，nn_hwd@126.com，研究方向为航天器轨道动力学、导航星座自主运行及卫星导航系统级测试与评估技术

Abstract

Abstract: In order to solve the problem of the lack of station in Beidou Global Navigation Satellite System, a route optimization method was proposed to quickly transmit the overseas satellite data to the domestic satellite by using the inter-satellite link. Firstly, the problem of fast data transmission in the case of limited number of ground stations was described, and the optimization objective, rules and constraints of data transmission routing were defined. Then, based on the genetic algorithm, the routing optimization method and the minimum data transmission scheme were proposed. Finally, the validity of the algorithm was verified. The results show data transmission is completed within 2 skips (6 seconds) in the Beidou system constellation with two domestic station conditions. This optimized result can meet the requirements of overseas data fast transmit.

Key words: Beidou Global Navigation Satellite System, inter-satellite link, data transmission, routing planning, genetic algorithm

GAO He, WANG Ling, HUANG Wende, SUN Leyuan. Routing optimization method for fast return of data on overseas satellites in Beidou Global Navigation Satellite System[J]. Chinese Space Science and Technology, 2018, 38(2): 9-15.

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Routing optimization method for fast return of data on overseas satellites in Beidou Global Navigation Satellite System

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