Research on Phase/Frequency Consistent Adjusting Method for Main/Backup Signals

In order to ensure the continuity and stability of the time/frequency signal, the time-keeping system outputs signals use the way of redundant backup of the main-backup signals, and make the backup signal traceable to the main signal. The signal generation system is set up, which uses UTCr and jointed atomic time scale (TA) to adjust the main signal, and adjusts the backup signal based on the historical data. Experiments show that the time deviation of TA is between −0.68 ns and 0.52 ns. The time synchronization precision of main-backup signals is less than 0.18 ns, the phase deviation of master-backup signals switching is 0.10ns, and the frequency deviation is 1.1E-15. These results fully prove that the signal generation system can realize smooth switching.