The research on carrier phase time transfer of BeiDou navigation satellite system

GPS/GLONASS Common view, all in view and PPP Time Transfer technology are widely used in the remote time comparison. With the benefit of the high precise measurement on carrier phase, the PPP time transfer technology which based on the carrier phase data has been used in the International time comparison for TAI computation. In this Paper, The Carrier Phase Time Transfer on BeiDou Navigation satellite system (BDS) is implemented. The technology is referenced with GPS carrier phase time transfer method Precise Point Position (PPP) and combined with dual-frequency observation from the BeiDou Navigation Satellite system. The broadcast ephemeris and precise orbits and clock data are used for calculation and comparison. The performance of this time transfer technology is analyzed on the respect of precise, frequency accuracy and stability. Compared with the BDS Common View and GPS Common View, the result of BeiDou carrier phase time transfer is verified and shows its better performance.