2-WAY TIME TRANSFER VIA COMMUNICATION SATELLITES
2-WAY TIME TRANSFER VIA COMMUNICATION SATELLITES
复制标题
DOI：
10.1109/5.84975
复制
发表时间：
1991-07-01
影响因子：
20.6
通讯作者：
KIRCHNER, D
中科院分区：
文献类型：
--
作者：
KIRCHNER, D
介绍了卫星双向时间传递的历史，并介绍了有利于这种时间传递技术的卫星通信技术的发展。阐述了单向和双向卫星时传递的区别，指出了双向时传递方法的优缺点，详细介绍了利用地球静止通信卫星进行双向时传递的原理，说明了该方法具有较高的精度潜力。概述了扩频技术的优点，描述了利用通信卫星和采用伪噪声（PN）调制解调器的小地球站实现双向方法，并讨论了信号延迟校准方法。列出了现有的连杆，并给出了它们的性能。实现的精度在亚纳秒范围内，使用小型可移动站进行延迟校准，期望精度至少为一纳秒。最后，对事实进行了总结，并对利用通信卫星的双向技术的未来应用进行了讨论。
Some information on the history of two-way satellite time transfer is provided and developments in satellite communications technology conducive to this time transfer technique are mentioned. The difference between one-way and two-way satellite time transfer is explained, the advantages and disadvantages of the two-way method are pointed out, and the theory of the two-way technique using geostationary communication satellites is presented in detail showing the high accuracy potential of the method. The advantages of the use of spread spectrum techniques are outlined and the implementation of the two-way method using communication satellites and small earth stations employing pseudonoise (PN)-modems is described, and methods for signal delay calibration are dealt with. Existing links are listed and their performances are given. The precisions achieved are in the subnanosecond range and one expects accuracies of at least one nanosecond using small transportable stations for delay calibration. Finally, facts are summarized and the future use of the two-way technique employing communication satellites is discussed.