拟准检定法在TWSTFT数据预处理中的应用  

Application of QUAD to TWSTFT data pre-processing

作　　者：王常何 李伟超[1,2] 欧吉坤[4] 杨旭海[1,2] 

机构地区：[1]中国科学院国家授时中心,西安710600 [2]中国科学院精密导航定位与定时技术重点实验室,西安710600 [3]中国科学院大学,北京100039 [4]中国科学院测量与地球物理研究所,武汉430077

出　　处：《时间频率学报》2013年第4期199-206,共8页Journal of Time and Frequency

基　　金：国家自然科学基金重点资助项目(11033004);西部之光联合学者资助项目(2007LH01);国家高技术研究发展计划(863计划)资助项目(2006AA12Z322)

摘　　要：基于双向卫星时间频率传递(TWSTFT)基本原理,建立了关于观测值真误差的数学模型,该模型是秩亏的。为了有效地克服模型的秩亏问题,首先设计了参数合并算法;然后将拟准检定法(QUAD)应用到数据预处理中。设计了适当的计算流程,解决了粗差检测问题。分别用仿真和实测数据进行了验证。Based on the basic theory of TWSTFT(two-way satellite time and frequency transfer), the mathematical model on real errors of observations is established in this paper. However, the model is rank-deficient. In order to solve this problem effectively, we introduced an algorithm of combining parameters, and applied QUAD(quasi-accurate detection of gross errors) to data pre-processing. We programmed appropriate algorithms and resolved the problem of detecting gross errors. The method has been verified to be successful by calculating and analyzing simulated data and practical measured data.

关 键 词：双向卫星时间频率传递 真误差 拟准检定法 粗差 

分 类 号：P127.1[天文地球—天体测量] P228[天文地球—天文学]