Thu Aug 14, F. Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
She, Haonan, Huang, Guanwen, Wang, Le, Qin, Zhiwei, Xie, Shichao, Lai, Wen, and Tian, Jing, 2024. A simplified GNSS/LEO joint orbit determination method. Measurement, 236:115029, doi:10.1016/j.measurement.2024.115029.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2024Meas..23615029S,
author = {{She}, Haonan and {Huang}, Guanwen and {Wang}, Le and {Qin}, Zhiwei and {Xie}, Shichao and {Lai}, Wen and {Tian}, Jing},
title = "{A simplified GNSS/LEO joint orbit determination method}",
journal = {Measurement},
keywords = {Joint orbit determination, GNSS, LEO, KPOD, RDPOD},
year = 2024,
month = aug,
volume = {236},
eid = {115029},
pages = {115029},
abstract = "{Joint orbit determination (JOD) of Global Navigation Satellite Systems
(GNSS) satellites and low Earth orbit (LEO) satellites has been
substantiated as an efficacious approach to compensate for the
ground station geometry. In the traditional JOD, the precise
orbit determination (POD) of LEO satellite is mainly processed
by the reduced-dynamic approach, however, this approach involves
complex calculations and the credibility of the determined
positions diminishes when LEO satellites undergo orbital
maneuvers. Therefore, a simplified JOD method is designed that
employs kinematic approach to determine the LEO satellites
orbit. To verify the effectiveness of the proposed method, the
orbit of GPS satellites and LEO satellites are jointly estimated
utilizing the regional and global networks. 8 LEO satellites,
including GRACE-C/D, SWARM-A/B/C, SENTINEL-3A/B, and JASON-3,
are chosen for JOD. The comparative analysis between the
proposed method and traditional method are achieved in terms of
GPS orbit accuracy, LEO orbit accuracy, computation time and the
JOD performance during LEO maneuvers. Under regional station
scenario, the GPS orbit accuracy determined using the proposed
method and the traditional method is 3.64 cm and 2.52 cm,
respectively. In the case of global station scenario, the
accuracies are 1.71 cm and 1.64 cm. Additionally, the
traditional method yields superior enhancement and higher
accuracy of the LEO orbits. However, it exhibits a noticeable
increase in computation time compared to the proposed method and
the performance of JOD declines significantly when LEO
satellites undergo orbital maneuvers. Alternatively, although
the accuracy of the LEO orbits using the proposed method is
comparatively lower, it offers a substantial reduction in the
overall network computation time compared to traditional method.
Moreover, the proposed method based on LEO kinematic precise
orbit determination (KPOD) is nearly unaffected by orbital
maneuvers of LEO satellites, presenting unique advantages in
practical data processing.}",
doi = {10.1016/j.measurement.2024.115029},
adsurl = {https://ui.adsabs.harvard.edu/abs/2024Meas..23615029S},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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