国产卫星双向时间比对设备性能评估分析

Performance evaluation analysis of domestic two-way satellite synchronous equipment

卫星双向时间比对是一种精度高、实时性强的远程时间比对技术,在时间频率和卫星导航等领域得到了广泛的应用。介绍了某卫星双向时间比对系统基本情况,设计了国产卫星双向时间比对设备性能评估方案,在两类场景下分别从4个方面对国产卫星双向时间比对设备性能进行了分析评估,比对了国产卫星双向时间比对设备与SATRE(satellite timing and ranging equipment)设备的差异,得到了国产卫星双向时间比对设备性能达到国际同类设备水平的结论。研究成果可用于卫星双向时间比对设备研制、测试与应用推广。

The two-way satellite time synchronization is a long-distance time comparison technology with high precision and strong real-time,which has been widely used in satellite navigation system and time-keeping system.We present the background of the two-way satellite time comparison and propose,subsequently,a design of the domestic two-way satellite time synchronization equipment performance evaluation scheme.In two different scenarios,the performance of domestic two-way satellite time comparison equipment is analyzed and evaluated in four aspects.For the differences between the domestic two-way satellite time synchronization equipment and SATRE equipment,the conclusion that the performance of the domestic two-way satellite time synchronization equipment is comparable to that of the foreign similar equipment is obtained.Our results can be used for the development,testing and application of the two-way satellite time synchronization equipment.