Realtime Precise Orbit Determination Technology for LEO Mega-Constellation
Supported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate the kinematic and dynamic orbit determination...
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| Format: | Article |
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Post&Telecom Press Co.,LTD
2024-03-01
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| Series: | 天地一体化信息网络 |
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| Online Access: | http://www.j-sigin.com.cn/zh/article/doi/10.11959/j.issn.2096-8930.2024008/ |
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| author | Zhen LI Chuang SHI |
| author_facet | Zhen LI Chuang SHI |
| author_sort | Zhen LI |
| collection | DOAJ |
| description | Supported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate the kinematic and dynamic orbit determination process had been a great advantage for LEO satellites with much frequent orbital maneuvers.The test results showed that the accuracy of accelerations computed from the radiation pressure and atmospheric drag non-conservation force models were around 5 nm/s<sup>2</sup>.Use the broadcast ephemeris, the real-time orbit determination algorithm could get an accuracy of 0.8 m in the satellites′ positions and 1.1 mm/s accuracy in the satellites′ velocity.When the real-time precise ephemeris of GNSS satellites were provided, the algorithm could get an accuracy of 8 cm in the LEO satellites′ position and 0.1 mm/s in the velocity.The method for real-time orbit determination and orbit prediction in this paper could be used to support the construction of navigation system with the mega-constellations. |
| format | Article |
| id | doaj-art-de2d420ff4ca462fb0cf61be9af7c6e2 |
| institution | Kabale University |
| issn | 2096-8930 |
| language | zho |
| publishDate | 2024-03-01 |
| publisher | Post&Telecom Press Co.,LTD |
| record_format | Article |
| series | 天地一体化信息网络 |
| spelling | doaj-art-de2d420ff4ca462fb0cf61be9af7c6e22025-01-15T02:48:41ZzhoPost&Telecom Press Co.,LTD天地一体化信息网络2096-89302024-03-015768359541672Realtime Precise Orbit Determination Technology for LEO Mega-ConstellationZhen LIChuang SHISupported by GNSS, it analyzed the advantages and disadvantages of solving LEO satellite orbit on the ground or onboard the satellites.The high-fidelity non-conservative force models were applied to the real-time orbit determination algorithm.To separate the kinematic and dynamic orbit determination process had been a great advantage for LEO satellites with much frequent orbital maneuvers.The test results showed that the accuracy of accelerations computed from the radiation pressure and atmospheric drag non-conservation force models were around 5 nm/s<sup>2</sup>.Use the broadcast ephemeris, the real-time orbit determination algorithm could get an accuracy of 0.8 m in the satellites′ positions and 1.1 mm/s accuracy in the satellites′ velocity.When the real-time precise ephemeris of GNSS satellites were provided, the algorithm could get an accuracy of 8 cm in the LEO satellites′ position and 0.1 mm/s in the velocity.The method for real-time orbit determination and orbit prediction in this paper could be used to support the construction of navigation system with the mega-constellations.http://www.j-sigin.com.cn/zh/article/doi/10.11959/j.issn.2096-8930.2024008/LEO mega-constellationreal-time precise orbit determinationnon-conservative force modelsatmospheric dragsolar radiation pressure |
| spellingShingle | Zhen LI Chuang SHI Realtime Precise Orbit Determination Technology for LEO Mega-Constellation 天地一体化信息网络 LEO mega-constellation real-time precise orbit determination non-conservative force models atmospheric drag solar radiation pressure |
| title | Realtime Precise Orbit Determination Technology for LEO Mega-Constellation |
| title_full | Realtime Precise Orbit Determination Technology for LEO Mega-Constellation |
| title_fullStr | Realtime Precise Orbit Determination Technology for LEO Mega-Constellation |
| title_full_unstemmed | Realtime Precise Orbit Determination Technology for LEO Mega-Constellation |
| title_short | Realtime Precise Orbit Determination Technology for LEO Mega-Constellation |
| title_sort | realtime precise orbit determination technology for leo mega constellation |
| topic | LEO mega-constellation real-time precise orbit determination non-conservative force models atmospheric drag solar radiation pressure |
| url | http://www.j-sigin.com.cn/zh/article/doi/10.11959/j.issn.2096-8930.2024008/ |
| work_keys_str_mv | AT zhenli realtimepreciseorbitdeterminationtechnologyforleomegaconstellation AT chuangshi realtimepreciseorbitdeterminationtechnologyforleomegaconstellation |