Discussion on data processing technology about precise time transfer based on GNSS carrier phase observation

TU Rui; ZHANG Pengfei; ZHANG Rui; FAN Lihong; HAN Junqiang; WANG Siyao; LU Xiaochun

doi:10.12265/j.gnss.2023003

Volume 48 Issue 2

Apr. 2023

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Article Navigation > GNSS World of China > 2023 > 48(2): 1-9

TU Rui, ZHANG Pengfei, ZHANG Rui, FAN Lihong, HAN Junqiang, WANG Siyao, LU Xiaochun. Discussion on data processing technology about precise time transfer based on GNSS carrier phase observation[J]. GNSS World of China, 2023, 48(2): 1-9. doi: 10.12265/j.gnss.2023003

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Discussion on data processing technology about precise time transfer based on GNSS carrier phase observation

doi: 10.12265/j.gnss.2023003

TU Rui^{1, 2, 4
,},
ZHANG Pengfei^{1, 3
,
,},
ZHANG Rui^{1, 2
,},
FAN Lihong^{1, 2
,},
HAN Junqiang^{1, 2
,},
WANG Siyao^{1, 2
,},
LU Xiaochun^{1, 2, 4
,}

1.
National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, China
2.
Key Laboratory of Precision Navigation and Timing Technology, Chinese Academy of Sciences, Xi’an 710600, China
3.
Key Laboratory of Time and Frequency Primary Standards, Chinese Academy of Sciences, Xi’an 710600, China
4.
University of Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2023-01-11
Available Online: 2023-05-04

Abstract

Abstract

Precise time transfer is one of the most fundamental works in the field of time frequency. GNSS has become an important means of precise time transfer due to its advantages. In particular, the time transfer technology based on high-precision carrier phase observations developed in recent years has become a research hotspot in the GNSS based time-frequency field. This study comprehensively summarizes the research on GNSS carrier phase precise time transfer, expatiates on the observation model and ambiguity resolution method, and discusses the key technical issues such as precision, consistency, robustness, continuity, real-time, and integrity which are involved in the data processing. It is pointed out that this field should focus on the unity of un-differenced and differenced processing models, the unity of time service by integrating different mechanisms, and the seamless time service of sky, earth, sea and underground.
- GNSS,
- carrier phase,
- precise time transfer,
- data solution,
- observation model

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References(97)

References

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