一种用于提升用户机授时精度的时钟准确度校正方法  

A Sort of Clock Accuracy Correction Method Used to Enhance Time Service Precision of User Receicver

作　　者：戴群雄[1,2] 安云飞[1,2] 戎强[1,2] 

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081 [2]河北省卫星导航技术与装备工程技术研究中心,石家庄050081

出　　处：《全球定位系统》2015年第5期30-33,共4页Gnss World of China

摘　　要：基于卫星导航系统定位授时原理,分析了用户机时钟与系统时间钟差对授时精度的影响,提出了一种用于提升用户机授时精度的时钟准确度校正方法,即:根据系统时间良好的长稳特性对用户机时钟的准确度进行校正,减小用户机时钟与系统时间钟差,并提升钟差修正的精度,从而达到提升用户机授时精度的目的。通过实验验证了该方法的可行性与有效性。Based on positioning and time service principle of satellite navigation, this pa- per analysed the influence on time service precision by user receiver＇s clock and system time clock offset, put forward a sort of clock accuracy correction method used to enhance time service precision of user receiver, namely： proceeded clock accuracy correction of user receiv- er＇s clock according to the good long-term stability characteristics of system time, to reduce user receiver＇s clock and system time offset and enhance the correction precision of clock off- set, so as to beat the target of enhancing time service precision of user receiver. The feasibil- ity and effectiveness of the proposed method were verified by experiments.

关 键 词：时钟准确度 钟差 授时精度 校正 

分 类 号：TN965.5[电子电信—信号与信息处理]