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September 10, 2025Satellite NavigationOpen Access

Integrated precise orbit determination for LEO constellation and BDS-3 MEO satellites using inter-satellite links and onboard BDS-3 observations

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POD method reduces errors for LEO from 22.7 cm to 1.3 cm and for MEO from 124.3 cm to 13.2 cm.
By utilizing ISL and GNSS data, accuracy improves, achieving 3D accuracy of 1.0 cm for LEO satellites.
This validation involved 24 BDS-3 MEO satellites along with 66 LEO satellites, showcasing enhanced precision.
Systematic rotation noted in satellite data correction remains a limitation but is mitigated through advanced methods.

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This method integrates inter-satellite links and GNSS observations to enhance orbit accuracy in both LEO and BDS-3 MEO satellites.

Qin et al. (2025) studied this question.

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