A method of high-performance satellite constellation time synchronization based on autonomous phase difference and frequency difference adjustment

In recent years, Inter-satellite link technology is one of the hottest issues in current satellite navigation and communication field, where time synchronization plays an important role in the performance of satellite constellation. In this paper, based on relevant research, a complete design method and solution of time synchronization system for satellite constellation has been proposed, providing solutions and technical supports for autonomous time synchronization and long-term consistency of time without the intervention of ground station. The uniqueness of this solution lies in the micro-frequency difference adjustment method instead of commonly used time difference adjustment method, which possesses the advantage of long-term time synchronization without influence of inter-satellite link.