Research on time and frequency transfer based on BeiDou common view

With the development of BeiDou(BD) Navigation Satellite system, BD can be another choice for remote precise time and frequency transfer. A strict common view test using BD Navigation Satellite System is carried out in this paper. Since there are GEO, IGSO and MEO satellites in BD Navigation Satellite system, common view based on GEO, IGSO and MEO are discussed in this paper separately. Finally, we give a different weight to each satellite according to its elevation, and get a weighted-average common-view result which is better than 5 ns.