北斗PPP链路相对校准及分析  

Relative calibration and analysis of BDS PPP time

作　　者：郭栋 董绍武[1,2] 武文俊 王威雄[1] 王翔 宋会杰 GUO Dong;DONG Shao-wu;WU Wen-jun;WANG Wei-xiong;WANG Xiang;SONG Hui-jie(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院国家授时中心,西安710600 [2]中国科学院大学天文与空间科学学院,北京100049

出　　处：《时间频率学报》2023年第1期1-7,共7页Journal of Time and Frequency

基　　金：中国科学院“西部之光”人才培养计划“西部青年学者”资助项目(XAB2017A06,XAB2021YN22)。

摘　　要：为促使北斗时间传递链路早日用于UTC(Coordinated Universal Time)的计算,在中国科学院国家授时中心(NTSC)开展了UTC(NTSC)与UTC(JATC)(Joint Atomic Time of China)间北斗精密单点定位(BDS PPP)链路相对校准试验,并以国际权度局(BIPM)公布的GPS精密单点定位(GPS PPP)链路结果为参考对其精度进行评估。试验结果表明,UTC(NTSC)与UTC(JATC)间BDS PPP链路经校准后其时间比对结果与BIPM GPS PPP链路结果的峰值偏差不超过0.2 ns,满足GNSS时间传递的精度要求。In order to promote the BeiDou time transfer link to be used for UTC calculation as soon as possible,the relative calibration test of the BDS PPP link between the UTC(NTSC)and the UTC(JATC)was carried out in the National Time Service Center,and its accuracy was evaluated with reference to the GPS PPP link results published by the BIPM.The test results show that after the BDS PPP link between the UTC(NTSC)and the UTC(JATC)is calibrated,the peak deviation between the time comparison results and the BIPM GPS PPP link results is no more than 0.2 ns,satisfying the accuracy requirement of GNSS time transfer.

关 键 词：北斗精密单点定位 GPS精密单点定位 时间比对 相对校准 

分 类 号：P127.1[天文地球—天体测量]