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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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Abstract
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/ | |||||||||||||||||||||||||||||||||
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| Document Type: | Article | |||||||||||||||||||||||||||||||||
| Title: | Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes. | |||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 2021 | |||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Measurement | |||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | |||||||||||||||||||||||||||||||||
| Open Access: | No | |||||||||||||||||||||||||||||||||
| Gold Open Access: | No | |||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | |||||||||||||||||||||||||||||||||
| DOI: | 10.1016/j.measurement.2021.110224 | |||||||||||||||||||||||||||||||||
| Publisher: | Elsevier | |||||||||||||||||||||||||||||||||
| ISSN: | 0263-2241 | |||||||||||||||||||||||||||||||||
| 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 |
Available Versions of this Item
- Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes. (deposited 02 Dec 2021 07:19) [Currently Displayed]
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