CAJ | 학술논문

双向卫星时间比对是一种高精度的远程时间比对手段，其比对经常不是连续进行的。为分析非连续双向卫星时间比对的水平，使用中国科学院国家授时中心的C波段双向卫星时间比对网的数据进行试验。采用的方法是对非连续双向卫星时间比对的结果进行内插，将内插结果与连续双向卫星时间比对的结果进行比较。结果表明本文试验条件下观测间隔时间在2.5 d以内时，非连续与连续观测结果之差的RMS值小于1 ns；观测间隔时间为0.5 d时，非连续与连续观测结果之差的RMS值小于0.5 ns。
쌍향위성시간비대시일충고정도적원정시간비대수단，기비대경상불시련속진행적。위분석비련속쌍향위성시간비대적수평，사용중국과학원국가수시중심적C파단쌍향위성시간비대망적수거진행시험。채용적방법시대비련속쌍향위성시간비대적결과진행내삽，장내삽결과여련속쌍향위성시간비대적결과진행비교。결과표명본문시험조건하관측간격시간재2.5 d이내시，비련속여련속관측결과지차적RMS치소우1 ns；관측간격시간위0.5 d시，비련속여련속관측결과지차적RMS치소우0.5 ns。
The two-way satellite time and frequency transfer(TWSTFT) is a kind of remote time comparison method with high precision. Generally, the comparison is not carried out continuously. The data from C-band TWSTFT Network of the national time service center(NTSC) was used for analyzing the level of non-continuous TWSTFT. The raw data of non-continuous TWSTFT was dealt with linear interpolation method and the result was compared with the continuous TWSTFT. The comparison shows that the RMS of the difference between non-continuous and continuous TWSTFT is less than 1 ns when the interval time is less than 2.5 d, and the RMS is less than 0.5 ns when the interval time is 0.5 d.