1. Anchor stations for inter-satellite link and design for its time synchronization
- Author
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Bai Yan, Lu Xiaochun, Jing Wenfang, Zhang Ke, and Jing Wngfang
- Subjects
Engineering ,business.industry ,Reliability (computer networking) ,Real-time computing ,Standard time ,Electrical engineering ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Field (computer science) ,Synchronization ,0104 chemical sciences ,Key (cryptography) ,Resource management ,Satellite navigation ,Pseudolite ,0210 nano-technology ,business - Abstract
Inter-satellite link technology is one of hot issues in current satellite navigation field and construction of inter-satellite link system cannot be completed without the cooperation and supports of ground anchor stations. In this paper, with respect to time synchronization issue which is of great importance in the construction of anchor stations for inter-satellite link, key technological issues such as time system design for anchor station, method of synchronization with standard time, clock error of anchor station and the determination of its precision have been deeply discussed and studied. On the base of relevant studies, a complete design method and solution of time synchronization system for anchor station has been proposed herein, thereby offering solution ideas and technological supports for resolving key problems encountered during the construction of anchor stations for inter-satellite link in China. The anchor station time system proposed in this paper can better ensure the time difference between ground station and BDT is less than 1us and the time synchronization precision of anchor station is less than 5ns, thereby guaranteeing the reliability of anchor station acting as Pseudolite being connected to inter-satellite link while offering further reference for subsequent testings and development of inter-satellite link.
- Published
- 2017