分布式守时架构下的高精度时间比对技术研究
Research on High Precision Time Comparison Technology under Distributed Punctuality Architecture
王崇阳 1杜文丛 1周云 2刘铁强 1孙建设3
作者信息
- 1. 中国电子科技集团公司第五十四研究所 石家庄 050081
- 2. 陆装驻石家庄地区第一代表室 石家庄 050000
- 3. 中国人民解放军61711部队 喀什 844000
- 折叠
摘要
为了实现分布式联合守时系统建立需求,设计了远程时间比对系统,包含卫星共视、卫星双向和光纤双向三种时间比对手段,系统内使用的国产化设备比对精度与进口设备相当,实现了实验室间多手段、高精度钟差测量.使用移动校准站完成了时间比对设备相对零值校准,在相距50 km的实验室间开展长达20天的时间比对,试验结果表明,三种比对手段测量得到两地钟差均值相差小于1 ns,变化趋势相同,变化幅度相近,均可以准确测量得到两地钟差.
Abstract
In order to meet the demand for distributed joint timekeeping system,a remote time comparison system was de-signed,which includes satellite co-visibility,satellite bi-directional,and fiber bi-directional time comparison means.The domestic equipment used in the system has the same time comparison accuracy as imported equipment,achieving high-precision clock differ-ence measurement between laboratories using multiple means.The relative zero value calibration of the time comparison equipment was completed using a mobile calibration station,and a 20-day time comparison was conducted between laboratories that were 50 km apart.The experimental results show that the mean clock difference measured by the three comparison means at the two loca-tions is less than 1 ns,the trend is the same,and the amplitude is similar,and all can accurately measure the clock difference between the two locations.
关键词
时间比对/移动校准站/零值校准Key words
Time comparison/Mobile calibration station/Zero calibration引用本文复制引用
出版年
2024
NETL
NSTL
万方数据