GNSS接收机原始观测值精度测试与分析  

Testing and analysis of the precision of GNSS receiver raw observations

作　　者：陈澍 任永超 张绪丰 牛犇 CHEN Shu;REN Yongchao;ZHANG Xufeng;NIU Ben(National Calibration Center for Electro-optical Distance Meter,Beijing 100039,China;China Railway Engineering Consulting Group Co.Ltd.,Beijing 100055,China)

机构地区：[1]国家光电测距仪检测中心,北京100039 [2]中铁工程设计咨询集团有限公司,北京100055

出　　处：《导航定位学报》2022年第1期140-146,共7页Journal of Navigation and Positioning

摘　　要：针对随着全球卫星导航系统(GNSS)与多种传感器的融合使用,人们对GNSS接收机原始观测值精度指标的评估需求快速增长的问题。提出分别采用零基线双差法、零基线三差法对GNSS接收机的伪距观测值精度、载波相位观测值精度进行测试。详细推导了原始观测值精度的测量原理,对4种型号各10台接收机的测试结果进行了统计分析,考察的系统和频点包括全球定位系统(GPS)L1C/A、L2、L5,伽利略卫星导航系统(Galileo)E1、E5a、E5b,北斗卫星导航系统(BDS)B1I、B2I、B3I、B1C、B2a。统计结果表明,采用零基线双差法、零基线三差法可以有效地反映接收机的原始观测值质量情况。In order to solve the problem of fast-growing assessment need of the precision of Global Navigation Satellite System(GNSS)receiver raw observations,with the fusion of GNSS and various sensors.Double-differenced method of zero baseline and triple-differenced method of zero baseline are proposed to test the precision of code and carrier phase measurement.The measurement principle of the precision of raw observation is deduced in detail,the test results of 10 receivers of 4 models are statistically analyzed,and the systems and frequencies include Global Positioning System(GPS)L1C/A,L2,L5,Galileo navigation satellite system(Galileo)E1,E5a,E5b,BeiDou navigation satellite System(BDS)B1I,B2I,B3I,B1C,B2a.The statistical results show that,double-differenced method and triple-differenced method of zero baseline can effectively reflect the quality of receiver raw observations.

关 键 词：伪距观测值精度 载波相位观测值精度 零基线双差法 零基线三差法 

分 类 号：P228[天文地球—大地测量学与测量工程]