| 摘要: |
| 针对同步网络内长基线分布的节点，实现高精度时间与频率无线传递的方法主要包括
双向卫星时间频率传递法（TWSTFT）与GPS共视法（CV）两种卫星技术手段。介绍
了这两种技术的工作原理，分析了误差环节，比较了两种技术手段，在此基础上
指出，这
两种技术手段都属于远距离传递，都易受外界环境和传输链路影响，因此建议实际应用中
这两种方式应该是独立运行、交叉互验的必要技术手段，需要综合利用，而并非一般认为的
二选一竞争关系。 |
| 关键词: 同步网络 双向卫星时间频率传递 GPS共视法 时间传输 长基线 |
| DOI：10.3969/j.issn.1001-893X. |
|
| 基金项目: |
|
| Combination Implementation of High Accuracy Time and Frequency Transfer Technique over Long Baseline |
| JIANG Yu-zhi |
| (Southwest China Institute of Electronic Technology, Chengdu 610036, China) |
| Abstract: |
| For nodes distributed over long baseline in synchronous network, there
are two ways for high accuracy time and frequency transfer, including two-way s
atellite time and frequency transfer (TWSTFT) and GPS common view(CV). The opera
tion principles are introduced, the error is analysed, and comparison between th
e two methods are made.On this base,it is concluded that long baseline transfer
will be easily effected by disadvantage of radio link and environment. It is po
inted out that these two methods are not competitors but cooperators, so they ar
e both necessary in practical application,and should be implemented independent
ly and combinedly. |
| Key words: synchronous network two way satellite time and frequency transfer (TWSTFT) GPS common view(CV) time transfer long baseline |
《电讯技术》编辑部 