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Time Comparison Experiments Between the Qzs-1 and its Time Management Station

机译：Qzs-1及其时间管理站之间的时间比较实验

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摘要

The National Institute of Information and Communications Technology (NICT) developed the time management system of the first Quasi-Zenith Satellite (QZS-1) in order to monitor the onboard clock as a part of the satellite navigation system. While an onboard clock is usually estimated together with the orbit of the satellite, the system described here enables the direct measurement of an onboard clock by comparing it with a ground clock by making use of a two-way time and frequency transfer which removes most of the propagation errors. Our system achieves a measurement precision of about 25 picoseconds which is an order of magnitude better than the precision of the clock parameters obtained from the combined orbit and clock estimation.
机译：美国国家信息和通信技术学院（NICT）开发了第一颗准天顶卫星（QZS-1）的时间管理系统，以便监视作为卫星导航系统一部分的机载时钟。虽然通常会与卫星轨道一起估算机载时钟，但此处描述的系统通过利用双向时间和频率传输来将机载时钟与地面时钟进行比较，从而能够直接测量机载时钟，从而消除了大部分传播误差。我们的系统实现了约25皮秒的测量精度，这比从组合的轨道和时钟估计获得的时钟参数的精度好一个数量级。

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  • 来源
    《Navigation》 |2013年第4期|319-324|共6页
  • 作者

    MAHO NAKAMURA; YASUHIRO TAKAHASHI; JUN AMAGAI; TADAHIRO GOTOH; MIHO FUJIEDA; RYO TABUCHI; SHINICHI HAMA; YUKIHIRO YAHAGI; TAMAKI TAKAHASHI; SATOSHI HORIUCHI;

  • 作者单位

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    National Institute of Information and Communications Technology;

    NEC Corporation;

    NEC Corporation;

    NEC Corporation;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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