Knowledge Management System Of National Time Service Center,CAS
| Initial analysis of the BDS satellite autonomous integrity monitoring capability | |
| Cao, Yueling1,2; Hu, Xiaogong1,2; Chen, Jinping3; Bian, Lang4; Wang, Wei5; Li, Rui6; Wang, Xue7; Rao, Yongnan7; Meng, Xin1; Wu, Bin1,2 | |
| 2019-04-01 | |
| 发表期刊 | GPS SOLUTIONS
 |
| ISSN | 1080-5370 |
| 卷号 | 23期号:2页码:12 |
| 摘要 | The integrity of Global Navigation Satellite System (GNSS) has the capability of sending a timely alarm to users when the GNSS is out of use, and it is one of the significant parameters of GNSS. Compared with ground-based integrity monitoring, integrity monitoring within the satellite constellation itself could lessen the effects of possible failures in the signal propagation path and ground systems and shorten the alarm time, which would quickly alert users of the system failure. Developing satellite autonomous integrity monitoring (SAIM) has been one of the main objectives of the upgrade plan for future GNSS such as GPS III, Galileo and the third generation of Beidou satellite navigation system (BDS3). To test the new technology, BDS3 experimental satellites are equipped with SAIM payload which is independently developed by China and it is the first satellite navigation system that applies SAIM method to monitor the navigation signals integrity. SAIM monitors signal quality and clock and frequency stability. We briefly introduce the payload design of SAIM on BDS3 experimental satellites, and evaluate in detail the monitoring measurements stability for two new civil signals of BDS3 open service, B1C_pilot signal, and B2a_pilot signal. By artificially setting signal faults, we analyze the time-to-alert performance of SAIM under its two kinds of alarming modes. The results show that the onboard observation stabilities of signal power, pseudorange, codecarrier bias, and codecarrier divergence are better than 0.12 dB, 0.1ns, 0.14ns, and 3.5mm/s, respectively, which were reliable at 1-year interval. The onboard satellite clock step monitoring precision is approximately 0.5ns. Once the abnormal signal is detected, the BDS SAIM may provide a warning within 6s. With the characteristics of overcoming the ground monitoring network limitation and fast alarming ability, SAIM is expected to be an effective method to enhance the BDS3 system integrity monitoring capability. |
| 关键词 | Beidou navigation satellite system SAIM Integrity monitoring |
| 资助者 | National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques |
| DOI | 10.1007/s10291-019-0829-z |
| 语种 | 英语 |
| 资助项目 | National Key Research Program of China[2016YFB0501900] ; National Natural Science Foundation of China[41674041] ; National Natural Science Foundation of China[11203059] ; Shanghai Key Laboratory of Space Navigation and Position Techniques[12DZ2273300] |
| 资助者 | National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanghai Key Laboratory of Space Navigation and Position Techniques ; Shanghai Key Laboratory of Space Navigation and Position Techniques |
| WOS研究方向 | Remote Sensing |
| WOS类目 | Remote Sensing |
| WOS记录号 | WOS:000457476800001 |
| 出版者 | SPRINGER HEIDELBERG |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/11805 |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Cao, Yueling |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Shanghai Key Lab Space Nav & Posit Tech, Shanghai 200030, Peoples R China 3.Beijing Satellite Nav Ctr, Beijing 100094, Peoples R China 4.China Acad Space Technol Xian, Xian 710100, Shaanxi, Peoples R China 5.Beijing Inst Tracking & Telecommun Technol, Beijing 100094, Peoples R China 6.Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China 7.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Yueling,Hu, Xiaogong,Chen, Jinping,et al. Initial analysis of the BDS satellite autonomous integrity monitoring capability[J]. GPS SOLUTIONS,2019,23(2):12. |
| APA | Cao, Yueling.,Hu, Xiaogong.,Chen, Jinping.,Bian, Lang.,Wang, Wei.,...&Wu, Bin.(2019).Initial analysis of the BDS satellite autonomous integrity monitoring capability.GPS SOLUTIONS,23(2),12. |
| MLA | Cao, Yueling,et al."Initial analysis of the BDS satellite autonomous integrity monitoring capability".GPS SOLUTIONS 23.2(2019):12. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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