Impact of new high stability frequency standards on the performance of the NIST AT1 time scale

被引：23

作者：

Parker, TE

Levine, J

机构：

[1] National Institute of Standards and Technology, Time and Frequency Division, Boulder

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1997年 / 44卷 / 06期

关键词：

D O I：

10.1109/58.656627

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The recent addition of new commercial high stability frequency standards to the National Institute of Standards and Technology (NIST) real time AT1 time scale has resulted in significant improvements in the performance of the scale. The frequency stability of the scale at one day has increased by a factor of 2 to 4 x 10(-15) and the stability at 100 days has improved to approximately 1 x 10(-15), As a result UTC (NIST) has been kept within 50 ns of UTC (Coordinated Universal Time) for the last year, Further improvements are anticipated as more high performance clocks are added to the AT1 ensemble.

引用

页码：1239 / 1244

页数：6

共 9 条

[1]

BREAKIRON LA, 1991, NASA C PUBLICATION, V3159, P297

[2]

KUSTERS JA, 1992, PROCEEDINGS OF THE 1992 IEEE FREQUENCY CONTROL SYMPOSIUM, P143, DOI 10.1109/FREQ.1992.270022

[3] THE ACCURACY EVALUATION OF NIST-7 [J].