An evaluation method on the service range of reference base station in assisted Beidou navigation

In order to improve the performance of mobile positioning, enhance the Beidou navigation system application ability, and reduce the investment cost of mobile network, an evaluation method of reference base station service range in assisted Beidou navigation mobile positioning was proposed. Beidou navigation system model was established by STK firstly, and actual application scenarios were simulated, and then the link data of observed the same satellite by reference base station and UE at the same time was calculated, respectively. Finally, the service range of reference base station was analyzed through the time of observation the same satellites. The simulation results showed that the service range of reference base station has a strong influence on the visible time of observing the same satellite by base station and UE. The assisted performance of Beidou would be seriously affected when the service range of reference base station is more than 300 km. The results could provide a priori information for assisted Beidou mobile positioning business development.