基于UTCr的原子钟频率动态预测方法

发布时间：2018-04-02 15:30

本文选题：UTCr　切入点：频率预测　出处：《中国科学院大学学报》2015年04期

【摘要】：传统的原子钟频率预报方法基于国际权度局BIPM每月公布的原子钟频率,具有较长的滞后性,且由于原子钟受多种噪声的影响,无法较准确地对原子钟频率进行近实时的预报.本文根据BIPM官方公布的快速协调世界时UTCr数据,提出基于UTCr的原子钟频率动态预测方法.采用参与国际时间比对的3个守时实验室,即日本国家计量院NICT、中国科学院国家授时中心NTSC和中国国家计量研究院NIM的钟比对数据,应用本文提出的频率预报方法和传统的频率预报方法分别进行原子时尺度计算.将参考原子时计算结果 TA'(k)-UTC(k)分别与UTC-UTC(k)进行比较,结果表明本文方法优于传统频率预报方法,提高了原子钟频率预测的近实时性,为频率驾驭提供了更加近实时可靠的参考,有助于获得更稳定和更准确的UTC(k).
[Abstract]:The traditional atomic clock frequency prediction method is based on the atomic clock frequency published every month by the International Bureau of weights (BIPM). It has a long lag and can not accurately predict the atomic clock frequency in real time because of the influence of many kinds of noise.In this paper, a dynamic prediction method of atomic clock frequency based on UTCr is proposed based on the fast coordinated UTC UTCr data published by BIPM.The clock comparison data of the three punctuality laboratories participating in the international time comparison, namely NICTI, the National Center for time Service of the Chinese Academy of Sciences (NTSC) and the National Institute of Metrology of China (NIM), were used.In this paper, the frequency prediction method and the traditional frequency prediction method are used to calculate the atomic time scale, respectively.The comparison of the calculated results of the reference atomic time (TAC) and UTC-UTC (k) shows that the proposed method is superior to the traditional frequency prediction method, improves the near real time of the atomic clock frequency prediction, and provides a more near real time and reliable reference for the frequency control.It helps to obtain more stable and accurate UTC.
【作者单位】：中国科学院国家授时中心中国科学院时间频率基准重点实验室;中国科学院大学;
【基金】：国家自然科学基金(11473029)资助
【分类号】：P127.1

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