High-precision timing technology based on navigation satellite

ZUO Zhaohui; DAI Qunxiong; WANG Zheng

doi:10.20193/j.ices2097-4191.2024.01.012

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Integrated Circuits and Embedded Systems ›› 2024, Vol. 24 ›› Issue (1) : 78-82. DOI: 10.20193/j.ices2097-4191.2024.01.012

Research Paper

High-precision timing technology based on navigation satellite

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Abstract

Based on the long-term stability of navigation satellite timing,combined with the excellent short-term stability and low drift rate of rubidium atomic clock,a high-precision timing technology is proposed.It tames the rubidium atomic clock based on 1 PPS of navigation receiver to provide high-precision timing service through three key technologies:precise clock difference measurement,Kalman filtering,and incremental PID algorithm.The verification results show that the phase stability of the output 1 PPS reaches within ±0.2 ns,the stability reaches 3.76E^-12 at 1 s during taming.

Key words

effectiveness check / tame / state control / high-precision timing

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ZUO Zhaohui , DAI Qunxiong , WANG Zheng. High-precision timing technology based on navigation satellite[J]. Integrated Circuits and Embedded Systems. 2024, 24(1): 78-82 https://doi.org/10.20193/j.ices2097-4191.2024.01.012

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