Abstract：In order to improve the accuracy and stability of the rubidium atomic clock frequency, equipment with multi output GNSS taming rubidium atomic frequency standard is designed based on FPGA technology. The taming and time tracking and synchronization of the rubidium atomic frequency are realized by the method of measuring the time interval using the rough and the fine measurements. Modular design and programming are used to improve the generality and transferability of the device.The data of rubidium atomic clock before and after taming were compared and tested many times taking the time and frequency of cesium atomic clock as reference. The results show that the relative accuracy of the device frequency reaches 1.5×10-13 and relative stability runs up to 6.97×10-13. Compared with before taming, the accuracy and stability of rubidium atomic clock frequency have been greatly improved the device not only improves the performance key parameters of rubidium atomic clock, but also broadens its applicability.
王亚军,张磊,谷扬,黄艳,康婷婷. 基于FPGA的北斗驯服铷原子频标装置的研制[J]. 计量学报, 2020, 41(3): 359-362.
WANG Ya-jun,ZHANG Lei,GU Yang,HUANG Yan,KANG Ting-ting. Development of BeiDou Taming Rubidium Frequency Standard Device Based on FPGA. Acta Metrologica Sinica, 2020, 41(3): 359-362.
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