PCO and hardware delay calibration for LEO satellite antenna downlinking navigation signals
文献类型：期刊论文
| 作者 | Liu, Jiawei2,4; Wang, Kan2,3,4; El-Mowafy, Ahmed1; Yang, Xuhai2,3,4 |
| 刊名 | MEASUREMENT SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 35期号:8页码:16 |
| 关键词 | low earth orbit (LEO) global navigation satellite system (GNSS) phase center offset (PCO) position, navigation and timing (PNT) hardware delay |
| ISSN号 | 0957-0233 |
| DOI | 10.1088/1361-6501/ad48a2 |
| 英文摘要 | Augmentation of the Global Navigation Satellite System by low earth orbit (LEO) satellites is a promising approach benefiting from the advantages of LEO satellites. This, however, requires errors and biases in the satellite downlink navigation signals to be calibrated, modeled, or eliminated. This contribution introduces an approach for in-orbit calibration of the phase center offsets (PCOs) and code hardware delays of the LEO downlink navigation signal transmitter/antenna. Using the satellite geometries of Sentinel-3B and Sentinel-6A as examples, the study analyzed the formal precision and bias influences for potential downlink antenna PCOs and hardware delays of LEO satellites under different ground network distributions, and processing periods. It was found that increasing the number of tracking stations and processing periods can improve the formal precision of PCOs and hardware delay. Less than 3.5 mm and 3 cm, respectively, can be achieved with 10 stations and 6 processing days. The bias projections of the real-time LEO satellite orbital and clock errors can reach below 3 mm in such a case. For near-polar LEO satellites, stations in polar areas are essential for strengthening the observation model. |
| WOS关键词 | ORBIT DETERMINATION ; GNSS |
| 资助项目 | International Partnership Program of the Chinese Academy of Sciences[021GJHZ2023010FN] ; National Time Service Center, Chinese Academy of Sciences (CAS)[E167SC14] ; National Natural Science Foundation of China[12073034] ; Australian Research Council[DP240101710] |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:001228246800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Australian Research Council ; Australian Research Council ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Australian Research Council ; Australian Research Council ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Australian Research Council ; Australian Research Council ; International Partnership Program of the Chinese Academy of Sciences ; International Partnership Program of the Chinese Academy of Sciences ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Time Service Center, Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Australian Research Council ; Australian Research Council |
| 源URL | [http://210.72.145.45/handle/361003/14621]  |
| 专题 | 国家授时中心_高精度时间传递与精密测定轨研究室 |
| 通讯作者 | Wang, Kan |
| 作者单位 | 1.Curtin Univ, Sch Earth & Planetary Sci, Perth, Australia 2.Chinese Acad Sci, Key Lab Time Reference & Applicat, Xian, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Natl Time Serv Ctr, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jiawei,Wang, Kan,El-Mowafy, Ahmed,et al. PCO and hardware delay calibration for LEO satellite antenna downlinking navigation signals[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2024,35(8):16. |
| APA | Liu, Jiawei,Wang, Kan,El-Mowafy, Ahmed,&Yang, Xuhai.(2024).PCO and hardware delay calibration for LEO satellite antenna downlinking navigation signals.MEASUREMENT SCIENCE AND TECHNOLOGY,35(8),16. |
| MLA | Liu, Jiawei,et al."PCO and hardware delay calibration for LEO satellite antenna downlinking navigation signals".MEASUREMENT SCIENCE AND TECHNOLOGY 35.8(2024):16. |
入库方式： OAI收割
来源：国家授时中心
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