Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system
文献类型：期刊论文
| 作者 | Zhou ShanShi1; Hu XiaoGong1; Liu Li2; Guo Rui2; Zhu LingFeng2; Chang ZhiQiao2; Tang ChengPan1; Gong XiuQiang1; Li Ran1 ; Yu Yang1
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2016 |
| 卷号 | 59期号:10 |
| 关键词 | ORBIT BDS TWSTFT satellite clock prediction accuracy system reference time Allan variance |
| ISSN号 | 1674-7348 |
| 英文摘要 | A two-way satellite time and frequency transfer (TWSTFT) device equipped in the BeiDou navigation satellite system (BDS) can calculate clock error between satellite and ground master clock. TWSTFT is a real-time method with high accuracy because most system errors such as orbital error, station position error, and tropospheric and ionospheric delay error can be eliminated by calculating the two-way pseudorange difference. Another method, the multi-satellite precision orbit determination (MPOD) method, can be applied to estimate satellite clock errors. By comparison with MPOD clock estimations, this paper discusses the applications of the BDS TWSTFT clock observations in satellite clock measurement, satellite clock prediction, navigation system time monitor, and satellite clock performance assessment in orbit. The results show that with TWSTFT clock observations, the accuracy of satellite clock prediction is higher than MPOD. Five continuous weeks of comparisons with three international GNSS Service (IGS) analysis centers (ACs) show that the reference time difference between BeiDou time (BDT) and golbal positoning system (GPS) time (GPST) realized IGS ACs is in the tens of nanoseconds. Applying the TWSTFT clock error observations may obtain more accurate satellite clock performance evaluation in the 10(4) s interval because the accuracy of the MPOD clock estimation is not sufficiently high. By comparing the BDS and GPS satellite clock performance, we found that the BDS clock stability at the 10(3) s interval is approximately 10(-12), which is similar to the GPS IIR. |
| 资助项目 | [National Natural Sciences Foundation of China] ; [Youth Innovation Promotion Association CAS] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/63211]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.Beijing Satellite Nav Ctr, Beijing 100094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou ShanShi,Hu XiaoGong,Liu Li,et al. Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59(10). |
| APA | Zhou ShanShi.,Hu XiaoGong.,Liu Li.,Guo Rui.,Zhu LingFeng.,...&Yu Yang.(2016).Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(10). |
| MLA | Zhou ShanShi,et al."Applications of two-way satellite time and frequency transfer in the BeiDou navigation satellite system".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.10(2016). |
入库方式： OAI收割
来源：国家天文台
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