CAJ | 학술논문

采用通过中国科学院国家授时中心（NTSC）GPS单、双频这2类观测设备得到的实测数据,进行了NTSC—PTB（physikalisch-technische bundesanstalt（Germary））链路的全视法比对计算和分析。利用这2类设备得到的GPS AV（全视）的结果与BIPM公布的AV方法的A类不确定度一致,从而确定国家授时中心的2类GPS观测设备的性能达到了国际同类水平。如果对双频观测设备时延校准后,采用P3类型进行比对,有望将NTSC现有的比对精度提高50%。
채용통과중국과학원국가수시중심（NTSC）GPS단、쌍빈저2류관측설비득도적실측수거,진행료NTSC—PTB（physikalisch-technische bundesanstalt（Germary））련로적전시법비대계산화분석。이용저2류설비득도적GPS AV（전시）적결과여BIPM공포적AV방법적A류불학정도일치,종이학정국가수시중심적2류GPS관측설비적성능체도료국제동류수평。여과대쌍빈관측설비시연교준후,채용P3류형진행비대,유망장NTSC현유적비대정도제고50%。
Based on the measurements obtained with a GPS single-frequency receiver and a GPS dual-frequency receiver,which are two different types of observation equipment developed at NTSC（national time service center,chinese academy of sciences）,the GPS AV（all-in-view） comparison and calculation for NTSC-PTB（physikalisch-technische bundesanstalt（Germany）） link were conducted.The results were analysed and the uncertainty is shown to be consistent with that published by BIPM,thus confirming that the two types of GPS receiver developed at NTSC have reached the international level.The precision of time comparison can be expected to be improved by 50% for NTSC,if the time-delay of the GPS dual-frequency receiver can be calibrated and AV（P3） is adopted.