北斗授时时统零值标定技术研究

针对日益增长的北斗授时时统零值标定需求，在建立北斗授时链路时间传递模型的基础上，深入研究了 5 种北斗授时时统零值标定技术的标定原理及其优势和不足，并利用不同型号北斗授时时统开展了零值标定实验验证。结果表明，5 种零值标定技术可分别实现不超过 0.1 ns、 0.9 ns、1.5 ns、2.0 ns、2.8 ns 的零值标定，分别适用于少量超高精度标定、小批量较高精度标定、 大批量自动化标定、日常巡检标定、快捷粗略标定等不同类型的北斗授时时统零值标定应用场合， 具有良好的工程应用价值。

Study on Zero-Value Calibration Technology of Beidou Timing System

In order to meet the growing demand for zero-value calibration of Beidou timing system, based on the establishment of Beidou timing link model, the testing mechanism, advantages and disadvantages of five Beidou timing system zero-value calibration technologies are analyzed in depth, and the zero-value calibration experiments are carried out using different Beidou timing systems. The results show that the five zero-value calibration technologies can achieve zero-value calibration of no more than 0.1 ns, 0.9 ns, 1.5 ns, 2.0 ns, 2.8 ns, respectively. They are suitable for different types of zero-value calibration applications such as small quantities of ultra-high precision calibration, small quantities of high accuracy calibration, large quantities of automated calibration, daily patrol calibration, fast and rough calibration, and have good engineering application value.