Time signal accurate characterization and transmission method

The invention provides a time signal accurate representation and transmission method. The method comprises the steps that sine wave signals and second pulse signals are used as time signal marks, wherein the second pulse signal is used as a time coarse mark; wherein the sine wave signal phase is used as a time fine mark, the sine wave signal phase and the second pulse signal keep a fixed alignmentrelation, the time coarse mark is a time signal mark which is accurate to dozens of picoseconds, and the time fine mark is a time signal mark which is accurate to subpicoseconds. The phases of the second pulse signal and the sine wave signal are associated and serve as a time coarse mark and a time fine mark respectively, and the time transmission and time delay calibration precision is improved. 本发明提供一种时刻信号精确表征和传递方法，包括：使用正弦波信号和秒脉冲信号作为时刻信号标记，所述秒脉冲信号作为时刻粗标记使用，所述正弦波信号相位作为时刻精细标记使用，所述正弦波信号相位和秒脉冲信号保持固定对齐关系，所述时刻粗标记为具有精确到几十皮秒的时刻信号标记，所述时刻精细标记为具有精确到亚皮秒的时刻信号标记。上述方法使秒脉冲信号与正弦波信号的相位关联起来，分别作为时刻粗标记和时刻精细标记，提高时刻传递和时延校准精度。