A theoretical and experimental analysis of frequency transfer uncertainty, including frequency transfer into TAI
A theoretical and experimental analysis of frequency transfer uncertainty, including frequency transfer into TAI
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DOI：
10.1088/0026-1394/47/5/005
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发表时间：
2010-10-01
期刊：
影响因子：
2.4
通讯作者：
Parker, Thomas E.
中科院分区：
文献类型：
--
作者：
Panfilo, Gianna;Parker, Thomas E.
本文从理论和实验两方面研究了频率标准远距离比对中的频率传递不确定度（FTU）。在这种比较中，FTU可以是总不确定性的重要组成部分。从理论上分析了FTU的Allan偏差特性，结果表明，对于某些噪声类型，Allan偏差偏高。还讨论了在某些情况下可以使用的可能更准确的第一差异统计量。此外，在常见的传输技术的噪声类型和水平的实验测定。它表明，FTU接近1部分10（16）在30天是可能的，与目前的转移方法。最后，给出了一种用一次频标校准国际原子时时FTU的估算方法。
Results are presented from a theoretical and experimental investigation of the frequency transfer uncertainty (FTU) in long-distance comparisons of frequency standards. The FTU can be an important component of the total uncertainty in such comparisons. The use of the Allan deviation in characterizing the FTU is analysed theoretically and it is shown that for certain noise types the Allan deviation is biased high. A potentially more accurate first difference statistic that can be used in certain situations is also discussed. In addition, an experimental determination of the noise types and levels in common transfer techniques is presented. It is shown that FTUs approaching 1 part in 10(16) at 30 days are possible with current transfer methods. Finally, a method is presented for estimating the FTU in calibrating International Atomic Time (TAI) with a primary frequency standard.