航空学报 > 2023, Vol. 44 Issue (3): 526500-526500   doi: 10.7527/S1000-6893.2021.26500

J0613-0200驾驭铯钟的方法

李变1,2(), 屈俐俐1,2, 高玉平1,2,3   

  1. 1.中国科学院 国家授时中心,西安 710600
    2.中国科学院 时间频率基准重点实验室,西安 710600
    3.中国科学院大学,北京 100049
  • 收稿日期:2021-10-11 修回日期:2021-11-05 接受日期:2021-11-17 出版日期:2023-02-15 发布日期:2021-11-23
  • 通讯作者: 李变 E-mail:lb@ntsc.ac.cn
  • 基金资助:
    国家自然科学基金(11873049);国家SKA专项(2020SKA0120103)

Methods for J0613-0200 steering a cesium clock

Bian LI1,2(), Lili QU1,2, Yuping GAO1,2,3   

  1. 1.National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China
    2.Key Laboratory of Time and Frequency Primary Standards,Chinese Academy of Sciences,Xi’an 710600,China
    3.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2021-10-11 Revised:2021-11-05 Accepted:2021-11-17 Online:2023-02-15 Published:2021-11-23
  • Contact: Bian LI E-mail:lb@ntsc.ac.cn
  • Supported by:
    National Natural Science Foundation of China(11873049);National SKA Specialized Research Fund(2020SKA0120103)

摘要:

近年来随着脉冲星观测设备性能提升,尤其是中国FAST的投入运行,毫秒脉冲星的计时观测精度不断提高,观测资料的数量、质量及时效性也显著改善,为脉冲星时的建立及应用提供有力的数据及技术支持。脉冲星时与原子时具有优势互补的特点,利用中国科学院国家授时中心的铯钟和相关时频设备,结合IPTA dr2数据资料,建立脉冲星驾驭铯钟的实验系统。并以J0613-0200为参考,开展单颗毫秒脉冲星驾驭铯钟的研究。截止目前,实验结果符合单颗毫秒脉冲星驾驭铯钟的预期,证明了脉冲星驾驭原子钟的可行性,并且实验系统建立的综合时间尺度保持了铯钟稳定度的优势。

关键词: 毫秒脉冲星, 铯钟, 驾驭, 计时噪声, 稳定度

Abstract:

In recent years, with the improvement of the performance of pulsar observation equipment, especially the operation of China’s FAST, the precision of millisecond pulsar timing observations has been continuously improved. The quantity, quality and timeliness of observation data have also been significantly improved, providing strong data and technical support for the establishment and application of pulsar time. Pulsar time and atomic time have complementary advantages. An experimental platform for pulsars to control the cesium clock is established using the cesium clock and related time-frequency equipment in National Time Service Center of the Chinese Academy of Sciences, and IPTA dr2 data. Research on steering the cesium clock by the single millisecond pulsar is carried out based on J0613-0200 steering a cesium clock. Up to now, the experimental results meet the expectation of a single millisecond pulsar steering a cesium clock, showing the feasibility of a pulsar driving an atomic clock. The integrated time scale obtained from the experimental system maintains the advantage of the cesium clock stability.

Key words: millisecond pulsar, cesium clock, steering, timing noise, stability

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