摘要
在BIPM差分校准方法基础上，实现了改进的可对时间频率传递GPS接收机内延迟进行单独校准的差分校准方法。以一台经过内延迟校准的接收机作为参考，利用改进的差分校准方法，对另一台基于JavadE—GGDGPS接收模块的自主研制的时间频率传递GPS接收机进行了内延迟校准，校准不确定度优于6ns，与绝对校准方法符合度优于1ns。
On the basis of BIPM differential calibration method, the modified calibration method that can be used to calibrate the receiver internal delay independently has been implemented. The calibration of one such receiver was carried out, a self-developed time transfer receiver, based on a Javad E_GGD GPS module, by the improved differential calibration method with respect to another time transfer receiver that had previously been calibrated, and a total calibration uncertainty of less than 6 nanosecond level can be acquired. The results of the differential calibration agree well with the ones of the absolute calibration formerly within 1 ns.
出处
《计量学报》
CSCD
北大核心
2012年第1期77-80,共4页
Acta Metrologica Sinica
基金
质检总局计划项目（2010QK387）
关键词
计量学
时间频率传递
GPS接收机
内部延迟
差分
校准
Metrology
Time and frequency transfer
GPS receiver
Internal delay
Differential
Calibration
