Thu Dec 12, F.Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
Ge, Yulong, Liu, Yanlong, Lyu, Daqian, Wu, Meifang, Wang, YuPu, Cao, Xinyun, and Shen, Fei, 2025. LEO satellite clock modeling and its benefits for real-time LEO PPP timing. Measurement, 242:116035, doi:10.1016/j.measurement.2024.116035.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025Meas..24216035G,
author = {{Ge}, Yulong and {Liu}, Yanlong and {Lyu}, Daqian and {Wu}, Meifang and {Wang}, YuPu and {Cao}, Xinyun and {Shen}, Fei},
title = "{LEO satellite clock modeling and its benefits for real-time LEO PPP timing}",
journal = {Measurement},
keywords = {LEO, Precise timing, Real time, Clock mod, Time synchronization},
year = 2025,
month = jan,
volume = {242},
eid = {116035},
pages = {116035},
abstract = "{In the kinematic Precise Orbit Determination (POD) process for low earth
orbit (LEO) satellites, a significant correlation exists between
the orbital and clock parameters. Here, a LEO satellite clock
model is proposed to enhance the Precise Point positioning (PPP)
timing and time synchronization during the LEO orbit/clock
determination. The GRACE-FO satellite was utilized to achieve
PPP timing and time transfer for LEO satellites with the real-
time (RT) products provided by three analysis centers, namely
Centre National d'Etudes Spatiales (CNES), GMV Aerospace and
Defense (GMV), and Wuhan Technical University (WHU). For the
frequency stability of the PPP timing for LEO satellites, the
short-term stability (1280 s) is about 10<SUP
loc=``post''>‑13</SUP> level, and the long-term stability
(10,240 s) is about 10<SUP loc=``post''>‑14</SUP> level.
Compared with the traditional PPP method (Scheme1), the LEO
satellite clock model (Scheme2) is capable of significantly
reducing the noise, regardless of whether it is PPP timing or
PPP time synchronization. The frequency stability of Scheme 1
shows an improvement in short-term stability (1280 s) by about 8
\%-72 \% and the max improvement of the long-term stability
(10240 s) by approximately 39 \%, the result also shows a better
improvement in LEO time synchronization.}",
doi = {10.1016/j.measurement.2024.116035},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025Meas..24216035G},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
Generated by
bib2html_grace.pl
(written by Patrick Riley
modified for this page by Volker Klemann) on
Thu Dec 12, 2024 11:52:51
GRACE
Thu Dec 12, F.Flechtner