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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 (2022) 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.

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0263224121011337#!

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/189041/
Document Type:Article
Title:Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wang, ZhiyuUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Li, ZishenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, LiangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, NingboUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yang, YangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Li, RanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, YangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, AngUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yuan, HongUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hoque, Mohammed MainulUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:2022
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:Published
Keywords:Low Earth OrbitPrecise orbit determinationReal-timeKinematicReduced-dynamic
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Solar-Terrestrial Physics SO
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Space Weather Observation
Deposited By: Hoque, Mohammed Mainul
Deposited On:12 Jan 2023 17:06
Last Modified:12 Jan 2023 17:06

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