摘要
为提高BPM短波授时信号质量,更好地完成短波授时任务,国家授时中心对BPM短波授时发播系统进行了升级改造。介绍了升级改造后的BPM短波授时发播系统的组成,工作原理。经近一年的运行,测试数据表明,BPM短波发播系统的改造升级大大提升了系统性能。
For improving the quality of BPM signal and accomplishing the short wave time-service better, the BPM shortwave time-service transmission system has been updated by NTSC(National Time Service Centre). The composition and principle for the renovated BPM shortwave time-service transmission system are introduced in this paper. After nearly one year’s operation, the tests for the system show that the performance of BPM shortwave time-service transmission system has been greatly improved due to the upgrading of the transmission system.
出处
《时间频率学报》
CSCD
2014年第4期221-227,共7页
Journal of Time and Frequency
基金
中国科学院大科学装置改造项目
关键词
BPM授时
升级改造
发播
BPM time service
upgrading
transmission
