GNSS载波相位精密时间传递数据处理技术综述  

Discussion on data processing technology about precise time transfer based on GNSS carrier phase observation

作　　者：涂锐[1,2,4] 张鹏飞 张睿[1,2] 范丽红[1,2] 韩军强[1,2] 王思遥[1,2] 卢晓春 TU Rui;ZHANG Pengfei;ZHANG Rui;FAN Lihong;HAN Junqiang;WANG Siyao;LU Xiaochun(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;Key Laboratory of Precision Navigation and Timing Technology,Chinese Academy of Sciences,Xi’an 710600,China;Key Laboratory of Time and Frequency Primary Standards,Chinese Academy of Sciences,Xi’an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China)

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]中国科学院时间频率基准重点实验室,西安710600 [4]中国科学院大学,北京100049

出　　处：《全球定位系统》2023年第2期1-9,共9页Gnss World of China

基　　金：国家自然科学基金(41974032,11903040,42274019)。

摘　　要：精密时间传递是时频领域最为基础的工作之一,在科技、经济、军事和社会生活中具有重要作用.全球卫星导航系统(GNSS)因其众多优势成为精密时间传递的重要手段,尤其是近些年发展的基于高精度载波相位观测值的时间传递技术成为GNSS时频领域的研究热点.本文对GNSS载波相位精密时间传递相关的研究进行了全面总结,对其数据处理涉及的观测模型、模糊度处理方法进行了归纳阐述,对精准性、一致性、稳健性、连续性、实时性、完好性等技术进行了探讨,并指出该领域未来应该重点解决非差与差分处理模型统一性、不同机理融合时间服务统一性和天空地海地下时间服务无缝性问题.Precise time transfer is one of the most fundamental works in the field of time frequency.GNSS has become an important means of precise time transfer due to its advantages.In particular,the time transfer technology based on high-precision carrier phase observations developed in recent years has become a research hotspot in the GNSS based time-frequency field.This study comprehensively summarizes the research on GNSS carrier phase precise time transfer,expatiates on the observation model and ambiguity resolution method,and discusses the key technical issues such as precision,consistency,robustness,continuity,real-time,and integrity which are involved in the data processing.It is pointed out that this field should focus on the unity of un-differenced and differenced processing models,the unity of time service by integrating different mechanisms,and the seamless time service of sky,earth,sea and underground.

关 键 词：全球卫星导航系统(GNSS) 载波相位 精密时间传递 数据处理 观测模型 

分 类 号：P228.4[天文地球—大地测量学与测量工程] P228.43[天文地球—测绘科学与技术]