A super-high resolution frequency standard measuring approach based on phase coincidence characteristics between signals

doi:10.1088/1674-1056/19/9/090601

Abstract A method for super high resolution comparison measurement is proposed in this paper with a comparison between the frequency standards of different nominal frequencies, which is based on phase coincidence detection of the two compared signals. It utilizes the regular phase shift characteristics between the signals. The resolution of the measurement approach can reach 10^-13/s at 5 MHz, and the self-calibration resolution can achieve 10^-14/s in the comparison between 10 MHz and 100 MHz, or even can reach 10^-15/s in the comparison between 10 MHz and 190 MHz. This method implies significant progress in the development of the high precision frequency standard comparison technology.

Keywords: frequency measurement resolution phase coincidence equivalent phase comparison frequency

Received: 20 November 2009
Revised: 04 March 2010
Accepted manuscript online:

PACS:	0630F
	0750

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.60772135 and 10978017), the Open Fund of Key Laboratory of Precision Navigation and Technology, National Time Service Center, Chinese Academy of Sciences (Grant No.2009PNTT10), and the Fundamental Research Funds for the Central Universities, China (Grant No. JY10000905015).

Cite this article:

Li Zhi-Qi(李智奇), Zhou Wei(周渭), Chen Fa-Xi(陈发喜), and Liu Chen-Guang(刘晨光) A super-high resolution frequency standard measuring approach based on phase coincidence characteristics between signals 2010 Chin. Phys. B 19 090601

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A super-high resolution frequency standard measuring approach based on phase coincidence characteristics between signals

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