北斗授时在地震观测技术中的应用  

The application of Beidou timing in seismological observation technology

作　　者：李江[1] 薛兵[1] 崔仁胜[1] 林湛[1] 刘明辉[1] 周银兴[1] 高尚华[1] 

机构地区：[1]中国地震局地震预测研究所地震预测重点实验室,中国北京100036

出　　处：《地震地磁观测与研究》2016年第5期131-135,共5页Seismological and Geomagnetic Observation and Research

基　　金：国家科技支撑计划专题(编号2012BAF14B12-04);青年科学基金项目(编号41404142)

摘　　要：中国正在实施的北斗卫星导航系统,已经覆盖亚太地区,可以为用户提供高质量的定位、导航和授时服务。本文介绍如何在地震数据采集器中引入北斗授时,并对比分析使用北斗授时和GPS授时的地震数据采集器的数据时间精度,结果发现,绝对精度均优于1 ms,可以利用该授时系统来提高地震观测台站时间服务的可靠性。China is implementing the Beidou satellite navigation system, which has covered in the AsiaPacific region and can provide high quality positioning, navigation and timing services for users.In this article, how to apply the Beidou timing for seismic digitizer, and how to compare the timeaccuracy of data using GPS timing with Beidou timing in seismic digitizer are introduced. Theresult shows that the absolute accuracy is higher than 1 ms. The Beigou timing system can improvethe reliability of the time service of seismic observation stations.

关 键 词：地震数据采集器 北斗 时钟精度 授时 

分 类 号：P315.62[天文地球—地震学]