Single-epoch power positioning method for multi-beam LEO communication satellites
Low Earth Orbit (LEO) communication satellites offer reduced signal loss, fast movement, multi-beam, typically providing single coverage. This paper introduces a novel multi-beam power positioning method for low-orbit single-satellite, addressing the slow convergence and low accuracy of Doppler posi...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2025.1533951/full |
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| author | Sibo Gao Sibo Gao Chunjiang Ma Chunjiang Ma Xiaomei Tang Xiaomei Tang Feixue Wang Feixue Wang |
| author_facet | Sibo Gao Sibo Gao Chunjiang Ma Chunjiang Ma Xiaomei Tang Xiaomei Tang Feixue Wang Feixue Wang |
| author_sort | Sibo Gao |
| collection | DOAJ |
| description | Low Earth Orbit (LEO) communication satellites offer reduced signal loss, fast movement, multi-beam, typically providing single coverage. This paper introduces a novel multi-beam power positioning method for low-orbit single-satellite, addressing the slow convergence and low accuracy of Doppler positioning. It establishes a power observation equation system, initializes with the nearest neighbor algorithm, and refines with the least squares method. Monte Carlo simulations indicate that with good initial values, the method converges in under 10 iterations, achieving 88.06% availability at 20° elevation with errors of 5,331 m (vertical) and 8,798 m (horizontal), and a timing error of 205 μs. At 70° elevation, all users converge with errors of 1,614 m and 1,088 m, and a timing error of 31.3 μs, demonstrating high power positioning availability. The statistical results show that power positioning users can obtain the positioning accuracy of kilometers and the timing accuracy of microseconds, which meets initial timing needs under strong confrontation, enhancing the medium and high orbit satellite navigation. |
| format | Article |
| id | doaj-art-e93796e1e58e416dab150760afc5b0d9 |
| institution | Kabale University |
| issn | 2296-424X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj-art-e93796e1e58e416dab150760afc5b0d92025-01-27T05:14:32ZengFrontiers Media S.A.Frontiers in Physics2296-424X2025-01-011310.3389/fphy.2025.15339511533951Single-epoch power positioning method for multi-beam LEO communication satellitesSibo Gao0Sibo Gao1Chunjiang Ma2Chunjiang Ma3Xiaomei Tang4Xiaomei Tang5Feixue Wang6Feixue Wang7College of Electronic Science and Technology, National University of Defense Technology, Changsha, ChinaKey Laboratory of Satellite Navigation Technology, Changsha, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha, ChinaKey Laboratory of Satellite Navigation Technology, Changsha, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha, ChinaKey Laboratory of Satellite Navigation Technology, Changsha, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha, ChinaKey Laboratory of Satellite Navigation Technology, Changsha, ChinaLow Earth Orbit (LEO) communication satellites offer reduced signal loss, fast movement, multi-beam, typically providing single coverage. This paper introduces a novel multi-beam power positioning method for low-orbit single-satellite, addressing the slow convergence and low accuracy of Doppler positioning. It establishes a power observation equation system, initializes with the nearest neighbor algorithm, and refines with the least squares method. Monte Carlo simulations indicate that with good initial values, the method converges in under 10 iterations, achieving 88.06% availability at 20° elevation with errors of 5,331 m (vertical) and 8,798 m (horizontal), and a timing error of 205 μs. At 70° elevation, all users converge with errors of 1,614 m and 1,088 m, and a timing error of 31.3 μs, demonstrating high power positioning availability. The statistical results show that power positioning users can obtain the positioning accuracy of kilometers and the timing accuracy of microseconds, which meets initial timing needs under strong confrontation, enhancing the medium and high orbit satellite navigation.https://www.frontiersin.org/articles/10.3389/fphy.2025.1533951/fullLEO satellitesmulti-beampower positioningpositioning accuracypositioning availability |
| spellingShingle | Sibo Gao Sibo Gao Chunjiang Ma Chunjiang Ma Xiaomei Tang Xiaomei Tang Feixue Wang Feixue Wang Single-epoch power positioning method for multi-beam LEO communication satellites Frontiers in Physics LEO satellites multi-beam power positioning positioning accuracy positioning availability |
| title | Single-epoch power positioning method for multi-beam LEO communication satellites |
| title_full | Single-epoch power positioning method for multi-beam LEO communication satellites |
| title_fullStr | Single-epoch power positioning method for multi-beam LEO communication satellites |
| title_full_unstemmed | Single-epoch power positioning method for multi-beam LEO communication satellites |
| title_short | Single-epoch power positioning method for multi-beam LEO communication satellites |
| title_sort | single epoch power positioning method for multi beam leo communication satellites |
| topic | LEO satellites multi-beam power positioning positioning accuracy positioning availability |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2025.1533951/full |
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