基于北斗的时间传递方法及其精度分析
发布时间：2018-09-08 17:56
【摘要】：GNSS时间传递技术是卫星导航技术在时间频率领域的重要应用,也是时间传递的主要技术手段之一。随着我国北斗卫星导航系统的不断建设,北斗系统在时间频率领域应用的研究也逐步深入。主要基于北斗卫星导航系统特有的IGSO、MEO、GEO卫星星座,开展了基于北斗共视和载波相位时间传递算法研究,研制了北斗时间传递软件包(PPTSlo),并对其时间传递链路精度、稳定度进行了定性、定量分析,实验结果表明北斗共视时间传递精度优于6 ns,北斗载波相位时间传递精度能达到亚纳秒-纳秒精度。
[Abstract]:GNSS time transfer technology is an important application of satellite navigation technology in the field of time and frequency, and it is also one of the main technical means of time transmission. With the continuous construction of Beidou satellite navigation system in China, the application of Beidou system in the field of time and frequency has gradually deepened. Based on the special IGSO,MEO,GEO satellite constellation of Beidou satellite navigation system, the research on Beidou common vision and carrier phase time transfer algorithm is carried out. The Beidou time transfer software package (PPTSlo), is developed and its time transmission link accuracy is analyzed. The stability is qualitatively and quantitatively analyzed. The experimental results show that the Beidou common-view time transfer accuracy is better than that of 6 ns, beidou carrier phase time transfer accuracy, which can reach sub-nanosecond to nanosecond accuracy.
【作者单位】： 中国科学院国家授时中心;中国科学院大学;
【基金】：国家重点研发计划(2016YFB0501804) 国家自然科学基金(41504006,41674034) 中国科学院百人计划和前沿科技重点研发计划(QYZDB-SSW-DQC028);中国科学院“西部之光”联合学者(Y507YR1203)项目资助
【分类号】：P228.4
[Abstract]:GNSS time transfer technology is an important application of satellite navigation technology in the field of time and frequency, and it is also one of the main technical means of time transmission. With the continuous construction of Beidou satellite navigation system in China, the application of Beidou system in the field of time and frequency has gradually deepened. Based on the special IGSO,MEO,GEO satellite constellation of Beidou satellite navigation system, the research on Beidou common vision and carrier phase time transfer algorithm is carried out. The Beidou time transfer software package (PPTSlo), is developed and its time transmission link accuracy is analyzed. The stability is qualitatively and quantitatively analyzed. The experimental results show that the Beidou common-view time transfer accuracy is better than that of 6 ns, beidou carrier phase time transfer accuracy, which can reach sub-nanosecond to nanosecond accuracy.
【作者单位】： 中国科学院国家授时中心;中国科学院大学;
【基金】：国家重点研发计划(2016YFB0501804) 国家自然科学基金(41504006,41674034) 中国科学院百人计划和前沿科技重点研发计划(QYZDB-SSW-DQC028);中国科学院“西部之光”联合学者(Y507YR1203)项目资助
【分类号】：P228.4
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