| Algorithm of Intersatellite Dynamic Two-way Time Transfer Based on GEO Satellite | |
| Huang, Feijiang; Lu, Xiaochun; Wu, Haitao; Bian, Yujing; Zhao, Hang | |
| 2009 | |
| 会议名称 | Joint Meeting of the 23rd European Frequency and Time Forum/IEEE International Frequency Control Symposium |
| 会议录名称 | 2009 JOINT MEETING OF THE EUROPEAN FREQUENCY AND TIME FORUM AND THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM, VOLS 1 AND 2 |
| 会议日期 | APR 20-24, 2009 |
| 会议地点 | Besancon, FRANCE |
| ISSN | 1075-6787 |
| 产权排序 | 1 |
| ISBN | 978-1-4244-3511-1 |
| 摘要 | Two-way time transfer is a common method applied to spacecrafts and ground stations to carry out time transfer. This method improved the accuracy of time transfer by eliminating the impact of propagation paths and extra delay caused by atmosphere, so the algorithm of two-way satellite time transfer is presently one of the time transfer methods with high accuracy. But this method requires the spacecrafts and ground stations, on which time transfer is to be performed, to keep a relatively static state in time transfer. So it is mainly used in GEO satellites for satellite-ground two-way time transfer. On the basis of two-way satellite time transfer algorithm, the characteristics of the propagation delay of two-way time transfer signals between MEO satellite and GEO satellite varying with intersatellite range were analyzed, and the rule of intersatellite clock offset varying with intersatellite range obtained with this algorithm was deduced. This paper presents a dynamic two-way time transfer algorithm(DTWTTA) with which high-accuracy intersatellite clock offset is solved through the combination of intersatellite pseudo-range polynomial fitting and clock-offset polynomial fitting. Simulation data of actual satellites showed that with the algorithm the intersatellite time transfer error can be controlled within 5ns provided with minimum square fitting, the two-way time transfer periods beginning at moments basically symmetrical with the occurrence of minimum intersatellite range relatively, and the impact of other factors being taken into account. As a result the algorithm can be used for intersatellite high-accuracy time transfer. |
| 部门归属 | 导航与通信研究室 |
| 主办者 | Conseil Reg Franche Comte, Ville Besancon, NIST, IEEE, UFFC Soc, Jet Propuls Lab, Symmetricom, OEwaves, Vectron, Conseil Gen Doubs, Communaute Agglomerat Grand Besancon, Univ Franche Comte, Minist Rech & Enseignement Superieur, Soc Francaise Microtech & Chronometrie, Frequency Elect |
| 收录类别 | CPCI |
| 语种 | 英语 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/5232 |
| 专题 | 导航与通信研究室 |
| 推荐引用方式 GB/T 7714 | Huang, Feijiang,Lu, Xiaochun,Wu, Haitao,et al. Algorithm of Intersatellite Dynamic Two-way Time Transfer Based on GEO Satellite[C],2009. |
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