Two-way satellite time transfer method based on carrier phase

The invention relates to a two-way satellite time transfer method based on carrier phase, which solves the technical bottleneck, namely consistency control of satellite exit code and carrier phase, in the application of carrier phase in a two-way satellite time transfer system. In addition, the accuracy of the two-way satellite time transfer system is improved by 1 to 2 orders of magnitude in comparison with a code pseudorange two-way satellite time transfer method by using carrier phase measurement in the two-way satellite time transfer system. The method is implemented based on the following conditions: one satellite and at least two user stations, wherein the base band of the two user stations can calculate modulation amount of a code and the carrier phase, and a base band control part conducts real-time modulation of the code transmitting a base band signal and the carrier phase according to the calculation result, thereby ensuring signals transmitted by the base band to pass through an antenna, an upgoing space link and a repeater, and ensuring the consistency between the code of a downgoing navigation signal and the carrier phase at exit of the repeater.