Distributed Network Time - Frequency Synchronization Based on Optically Carried Satellite Navigation Signals

In this paper, a distributed network time-frequency synchronization system based on optically carried satellite navigation signals is proposed. This system generates satellite navigation waveform signals at both nodes and transmits them to the opposing receiver through an optical fiber link. The system leverages the integrated measurement and communication capability of satellite navigation signal to calculate and compensate for the clock difference between the two nodes, ultimately achieving picosecond-level synchronization accuracy.