Novel frequency stability measurement method with whole sample time range

Bayi Qu; Fanxin Xue; Dongsong Yu; Longfei Xu; Wei Zhou

doi:10.1063/1.5037928

Novel frequency stability measurement method with whole sample time range

Rev Sci Instrum. 2018 Aug;89(8):085113. doi: 10.1063/1.5037928.

Authors

Bayi Qu¹, Fanxin Xue¹, Dongsong Yu¹, Longfei Xu², Wei Zhou²

Affiliations

¹ School of Information Engineering, Chang'an University, Xi'an 710064, Shaanxi, China.
² School of Electro-Mechanical Engineering, Xi'dian University, Xi'an 710071, Shaanxi, China.

PMID: 30184668
DOI: 10.1063/1.5037928

Abstract

A method to measure the frequency stabilities with a nearly whole range of sample time is presented. Precision as high as 10^-5/100 ns has been obtained by it when measuring transient stability with 100 ns sample time, 10^-12/s has been obtained toward short-term stability with 1 s sample time, and 10^-16/day has been obtained with regard to long-term stability with 1 day sample time. In addition, because the frequency stabilities in a wider range of sample time can correspond to the phase noise index more accurately, the phenomena which are difficult to be observed in a phase noise curve can be detected through this measurement.