Design and Analysis of Chain Construction of Navigation Constellation

The research goal of this paper is the design analysis of the construction of navigation constellation stars in time division system to meet the requirements of navigation constellation in terms of measurement and data transmission. By uniformly integrating the continuously visible links between the stars into the slot cycle, the non-continuously visible links of the remaining slots are prioritized with high probability of not being in the same territory at the same time, and increasing the use of high-orbit satellites to establish domestic and foreign links, Inter-satellite link and route planning principles Constellation in each star’s time slot table and routing table to complete the pre-distribution of each node connection. The statistical PDOP values of all the satellites and any two-way time slots show that the range of the PDOP is 0.47–1.42, meeting the measurement requirement of PDOP < 1.5. The average transmission delay between stars is 3.5 s, meeting the requirements of data transmission delay.