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Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes.

Wang, Zhiyu and Li, Zishen and Wang, Liang and Wang, Ningbo and Yang, Yang and Li, Ran and Zhang, Yang and Liu, Ang and Yuan, Hong and Hoque, Mohammed Mainul (2021) Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes. Measurement. Elsevier. doi: 10.1016/j.measurement.2021.110224. ISSN 0263-2241. (In Press)

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The real-time high-accuracy orbit and clock of the GNSS (Global Navigation Satellite System) are one of the most essential corrections for the real-time kinematic precise orbit determination (POD) mode and reduced-dynamic POD mode for Low Earth Orbit (LEO) satellites. This work is devoted to initially achieve the real-time POD with the two modes and compare their performance. Numerical results showed that (1) the average accuracy improvement of the real-time reduced-dynamic POD relative to the real-time kinematic POD is about 46% on the condition that the number of observable GPS satellites is less than 6; (2) Comparing with the real-time kinematic POD, the real-time reduced-dynamic orbit determination by applying dynamical constraints can improve the accuracy (maximum 12%) of LEO POD and reduce the convergence time (maximum 20%); (3) in most circumstances, the accuracy of real-time kinematic POD and reduced-dynamic POD for LEO are better than 11 cm and 9 cm, respectively, and the reduced-dynamic POD performs more robust against the kinematic POD.

Item URL in elib:https://elib.dlr.de/146336/
Document Type:Article
Title:Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes.
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wang, Zhiyuzhiyu.wang (at) dlr.deUNSPECIFIED
Li, Zishenlizishen (at) aircas.ac.cnUNSPECIFIED
Wang, Liangwangliang (at) aircas.ac.cnUNSPECIFIED
Wang, Ningbowangningbo (at) aoe.ac.cnUNSPECIFIED
Yang, Yangyiyinfeixiong (at) gmail.comUNSPECIFIED
Li, Ranliran (at) aircas.ac.cnUNSPECIFIED
Zhang, Yangzhangyang101002 (at) aircas.ac.cnUNSPECIFIED
Liu, Angliuang (at) aircas.ac.cnUNSPECIFIED
Yuan, Hongyuanhong (at) aircas.ac.cnUNSPECIFIED
Hoque, Mohammed MainulMainul.Hoque (at) dlr.deUNSPECIFIED
Journal or Publication Title:Measurement
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.measurement.2021.110224
Status:In Press
Keywords:Low Earth Orbit, Precise orbit determination, Real-time, Kinematic, Reduced-dynamic
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics
Deposited By: Wang, Zhiyu
Deposited On:02 Dec 2021 07:19
Last Modified:02 Dec 2021 07:19

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