Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pnaoc...3...13n&link_type=abstract
Astronomical Research and Technology. Publications of National Astronomical Observatories of China (ISSN 1672-7673), Vol. 3, No.
Astronomy and Astrophysics
Astronomy
Time Measurement, Keep Time And Instruct Time, Time-Frequency To Traceable Source Link, Time Synchronization, Time Application
Scientific paper
Taking the traceable source link system of the time-frequency as the typical one from the National Intelligence Standard Research Institute (NIST) of the United States, the article provides its block-diagram and technical indicators reviews its aim and its task. The article also gives the important characters of the traceable source link of the time-frequency, which includes: having the high-accuracy cesium fountain primitive frequency benchmark (accuracy and steady degrees all reach to 1×E-15), keeping ahead in the aspect of time-frequency transform method technology research and development, then reaching the advanced level in the frequency measurement and the analytical system of long-range calibration (FMAS), so as in the quality of the high integration, automatization, intelligent, lightweight of top-level equipment in the traceabel source link system. At last, the article describes the importance and the key technical indicator achieved at present to the high-accuracy synchronous time-frequency system in the field of the astronomy measurement, the guided missile launch, navigation and orientation, etc.
He Kang-Yuan
Ni Guang-Ren
Xu Lu-Ping
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