Sponsored by China Instrument and Control Society
ISSN 0254-3087 CN 11-2179/TH
12 issues per year
Discipline(s): Engineering Technology
Current Issue: Issue 10, 2018
Chinese Journal of Scientific Instrument is 2nd in Mechanical Engineering, Top10. Supervised by China Association for Science and Technology. Sponsored by China Instrument and Control Society. Chinese Journal of Scientific Instrument publishes papers with the highest academic level in the field of Chinese instrument and automation, aims to report scientific frontier, research hotspot and research direction, and also supports the creative scientific thought, values the verification of science experiment. Collected by Ei, CA, SA, JST and CSCD.Impact factor is 2.67.
Wang Weiqi, Xu Yunzhong, Wang Xue
Vol 39,No. 10
The high-precision position & navigation & timing service has been offered by Galileo navigation satellite system for more than one year. It is necessary to evaluate the performance of on-board clock during this period. The related evaluation method can be used as the reference for the BDS-3 on-board hydrogen maser. The performance of the on-board hydrogen maser is analyzed since the official service starts. It shows that Hadamard variance is the optimal statistics. Moreover, resampling the clock difference to low-frequency clock difference has no influence on the stability. More days of missing data result in the greater impact on the stability of the on-board clock. It is also verified that the noise type of on-board clock is closely related to the stability of on-board clock.