BDS/GPS观测值质量评估与分析  

Quality Evaluation and Analysis of BDS/GPS Observation

作　　者：吴春节[1] 胡玉坤[1] 彭攀 

机构地区：[1]宁波市测绘设计研究院,浙江宁波315042

出　　处：《北京测绘》2017年第01S期32-36,共5页Beijing Surveying and Mapping

摘　　要：针对TEQC只能检核Rinex2.xx版的GPS数据的特点,编制了多模数据质量评估软件QC(Quality Check),实例验证了该软件的有效性,在此基础上分析了BDS/GPS的伪距多路径效应(mp1、mp2)与信噪比(sn1、sn2)。结果表明:BDS/GPS的mp1大于mp2,BDS的多路径效应存在MEO>IGSO>GEO的规律,且IGSO卫星存在明显的漂移;随着高度角的减小,BDS/GPS的sn1、sn2逐渐减小;BDS的IGSO卫星、MEO卫星和GPS卫星的信噪比与多路径存在负相关。According to the characteristics of TEQC can only check the Rinex2.xx version of the data,this paper developed a software named QC（Quality Check）to evaluate observation quality.The software was validated,based on this analysis on multipath effect of BDS/GPS（MP1,MP2）and signal-to-noise ratio（SN1,SN2）.The results showed that the MP1 of BDS/GPS was bigger than MP2;the multipath effect BDS MEOIGSOIGSO,and that the GEO satellite has obvious drift.With the reduction of the elevation angle,SN1 and SN2 of BDS/GPS gradually reduced,the signal to noise ratio of IGSO,MEO and GPS is negative correlation with multipath.

关 键 词：TEQC 数据质量评估 BDS/GPS 多路径效应 漂移 

分 类 号：P208[天文地球—地图制图学与地理信息工程]