| Autor: |
Yulu ZHANG, Zhen LI, Chuang SHI, Guifei JING |
| Jazyk: |
čínština |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
天地一体化信息网络, Vol 5, Pp 84-94 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2096-8930 |
| DOI: |
10.11959/j.issn.2096-8930.2024009 |
| Popis: |
This paper proposed a Doppler-only point-solution algorithm and analyzed the Doppler positioning performance based on the Starlink constellation.The Doppler positioning accuracy was about 3～6 m.To achieve the meter-level positioning accuracy, the satellite position and velocity errors should be within several meters and several centimeters per second, respectively.The ionospheric delay rates of C-band signal would cause about 2 m error in Doppler positioning.The positioning error would increase by dozens of meters if there were no corrections for the tropospheric errors.To ensure convergence in the LEO-based Doppler positioning, the initial receiver position error should be less than 300 km when the satellites orbit at an altitude of 550 km. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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