| Time synchronization and carrier frequency control of CAPS navigation signals generated on the ground | |
| Wu HaiTao; Bian YuJing; Lu XiaoChun; Li XiaoHui; Wang DanNi | |
| 2009 | |
| 发表期刊 | SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
 |
| ISSN | 1672-1799 |
| 卷号 | 52期号:3页码:393-401 |
| 摘要 | The Chinese Area Positioning System (CAPS) works without atomic clocks on the satellite, and the CAPS navigation signals transmitted on the ground may achieve the same effect as that with high-performance atomic clocks on the satellite. The primary means of achieving that effect is through the time synchronization and carrier frequency control of the CAPS navigation signals generated on the ground. In this paper the synchronization requirements of different time signals are analyzed by the formation of navigation signals, and the theories and methods of the time synchronization of the CAPS navigation signals generated on the ground are also introduced. According to the conditions of the high-precision satellite velocity-measurement signal source, the carrier frequency and its chains of the navigation signals are constructed. CAPS velocity measurement is realized by the expected deviation of real time control to the carrier frequency, and the precision degree of this method is also analyzed. The experimental results show that the time synchronization precision of CAPS generating signals is about 0.3 ns and the precision of the velocity measurement signal source is about 4 cm/s. This proves that the theories and methods of the generating time synchronization and carrier frequency control are workable. |
| 部门归属 | 时间频率测量与控制研究室 |
| 关键词 | Caps Satellite Navigation Time Synchronization Velocity-measurement |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000264106800012 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/4732 |
| 专题 | 时间频率测量与控制研究室 |
| 推荐引用方式 GB/T 7714 | Wu HaiTao,Bian YuJing,Lu XiaoChun,et al. Time synchronization and carrier frequency control of CAPS navigation signals generated on the ground[J]. SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,2009,52(3):393-401. |
| APA | Wu HaiTao,Bian YuJing,Lu XiaoChun,Li XiaoHui,&Wang DanNi.(2009).Time synchronization and carrier frequency control of CAPS navigation signals generated on the ground.SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY,52(3),393-401. |
| MLA | Wu HaiTao,et al."Time synchronization and carrier frequency control of CAPS navigation signals generated on the ground".SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY 52.3(2009):393-401. |
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