Creation of the first Russian time and frequency standard on a fountain of ultracold rubidium atoms

2018 ◽  
Vol 48 (10) ◽  
pp. 967-972
Author(s):  
K Yu Pavlenko ◽  
Yu K Pavlenko ◽  
A A Belyaev ◽  
I Yu Blinov ◽  
M N Khromov ◽  
...  
Keyword(s):  
Frequency Standard ◽  
Rubidium Atoms ◽  
Time And Frequency Standard

The time and frequency standard system for FAST receivers

2020 ◽  
Vol 20 (5) ◽  
pp. 072
Author(s):  
Kai Zhu ◽  
Jin Fan ◽  
Kun Liang ◽  
Wei Tang ◽  
Zhi-Sheng Gao ◽  
...  
Keyword(s):  
Frequency Standard ◽  
Standard System ◽  
Time And Frequency Standard

Study on Aerospace Layering Time Synchronization Architecture and Time Synchronization Algorithm

2012 ◽  
Vol 546-547 ◽  
pp. 1614-1619
Author(s):  
Fei Jiang Huang ◽  
Xiao Chun Lu ◽  
Jun Yang ◽  
Qing Xiao Shan ◽  
Yong Bin Zhou
Keyword(s):  
Time Synchronization ◽  
Rapid Development ◽  
Frequency Standard ◽  
High Accuracy ◽  
Time Frequency ◽  
Aerospace Application ◽  
Visual Model ◽  
Application Systems ◽  
Synchronization Algorithm ◽  
Time And Frequency Standard

The rapid development of various kinds of aerospace application systems requires the appropriate high-accuracy time and frequency standard. This problem can be effectively solved by establishing suitable time and frequency standard in aerospace. Based on the establishment of aerospace satellite visual model, the simulation of satellite visual time on 3-layer constellation structure, including GEO satellite, IGSO satellites and MEO satellites, has been conducted. The visual features of this constellation have been gained. Combining with the major influencing factors of satellite clock correction error, aerospace time synchronization architecture on the basis of layering has been proposed. The time synchronization algorithm in line with this architecture has been researched. The results show that aerospace time frequency standard established based on this layering time synchronization architecture can meet the demand on high-accuracy time frequency of future aerospace application systems.

scholarly journals Hydrogen-Maser Time and Frequency Standard at Agassiz Observatory

Radio Science ◽  
1970 ◽  
Vol 5 (10) ◽  
pp. 1287-1292 ◽  
Author(s):  
Martin W. Levine ◽  
Robert F. C. Vessot
Keyword(s):  
Frequency Standard ◽  
Hydrogen Maser ◽  
Time And Frequency Standard

scholarly journals A New State Time and Frequency Standard of the USSR

1979 ◽  
Vol 82 ◽  
pp. 19-21
Author(s):  
S. Pushkin
Keyword(s):  
Systematic Error ◽  
Time Scales ◽  
Frequency Standard ◽  
Time Intervals ◽  
State Time ◽  
Frequency Standards ◽  
Time And Frequency Standard ◽  
Definition Of ◽  
Hydrogen Frequency ◽  
Definition Of Units

In 1976 a new state primary time and frequency standard of the USSR was certified and confirmed with an error of reproducibility less than 1 × 10−13 and with an unavoidable systematic error less than 3–4 × 10−13. This standard includes a laboratory primary cesium beam frequency standard providing an independent definition of units in the SI system, primary hydrogen frequency standards preserving the units of frequency and time intervals, and hydrogen and cesium clocks providing the TA(SU) and UTC(SU) time scales.

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