卫星单频近距离共视与双频单向授时站间同步性能分析  

Analysis of synchronization performance between two stations with satellite single-frequency close-range common view and dual-frequency one-way timing

作　　者：曾文帝 何力[1] 刘娅[2] ZENG Wen-di;HE Li;LIU Ya(Zhongxing Telecommunication Equipment Corporation,Shenzhen 518057,China;National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China)

机构地区：[1]中兴通讯股份有限公司,深圳518057 [2]中国科学院国家授时中心,西安710600

出　　处：《时间频率学报》2020年第2期101-112,共12页Journal of Time and Frequency

基　　金：新一代宽带无线移动通信网重大专项资助项目(2017ZX03001016)。

摘　　要：文章对双频电离层修正技术原理和卫星共视技术原理进行了论述。通过建立相应的数学模型,对它们的电离层时延修正处理方法进行分析,从而说明在电信网络的高精度时间传递过程中采用单频接收机代替双频接收机实施卫星共视技术的可行性。最后,通过实验论证了在一定基线范围内,单频卫星共视比对实现的授时精度能达到近似双频的结果。This paper discusses the principles of dual-frequency ionospheric correction technology and satellite common-view technology.By establishing the corresponding mathematical models,we analyze their processing methods for the ionospheric delay correction,and then illustrate the feasibility of using single-frequency receiver instead of dual-frequency receiver to implement satellite common-view technology in the process of high-precision time transmission of telecommunication network.Finally,we experimentally demonstrate that the timing accuracy by single-frequency satellite common-view comparison approaches to the one by dual-frequency within a certain baseline.

关 键 词：单频 双频 卫星共视 授时精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]