基于卫星共视原子钟驯服法的远程时间溯源技术研究

Research on Remote Time Traceability Technology Based on Satellite Common-View Atomic Clock Discipline Method

摘要: 通过建立卫星共视原子钟驯服装置，将本地原子时与国家时间频率基准参考站进行共视比对，实现了铷原子钟的驯服标准差2.19 ns，时间偏差稳定度（1天）小于1×10⁻⁹，相对频率偏差−8.42×10⁻¹⁷，频率稳定度（1天）小于2×10⁻¹⁴；铯原子钟的驯服标准差1.5 ns，时间偏差稳定度（1天）小于1×10⁻⁹，相对频率偏差7.03×10⁻¹⁷，频率稳定度（1天）小于1×10⁻¹⁴。本地原子时得到有效的溯源，为完善时间标准的检定系统表提供了技术验证。

Abstract: In this paper, through the establishment of a satellite common-view atomic clock discipline device, the local atomic time is compared with the national time and frequency reference station. Results show that the standard deviation of the rubidium clock is 2.19 ns, the stability of time deviation (1 day) is less than 1×10⁻⁹, the relative frequency deviation is −8.42×10⁻¹⁷, the frequency stability (1 day) is less than 2×10⁻¹⁴, and the discipline standard deviation of cesium clock is 1.5 ns. The stability of time deviation (1 day) is less than 1×10⁻⁹, the relative frequency deviation is 7.03×10⁻¹⁷, and the frequency stability (1 day) is less than 1×10⁻¹⁴. The local atomic time is effectively traced and provides technical validation to improve the verification system table of the time standard.