北海区MSAS单点定位精度分析  

PRECISION OF MSAS SINGLE-POINT POSITIONING IN NORTHERN CHINA SEAS

作　　者：雷艳[1,2] 高延铭[2] 王金磊[2] 谭萌[1,2] 陈烽[2] LEI Yan GAO Yanming WANG Jinlei TAN Meng CHEN Feng(Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation Qingdao 266061, China North China Sea Data and Information Service, SOA, Qingdao 266061, China)

机构地区：[1]山东省海洋生态环境与防灾减灾重点实验室,青岛266061 [2]国家海洋局北海信息中心,青岛266061

出　　处：《海洋地质前沿》2016年第12期65-70,共6页Marine Geology Frontiers

基　　金：山东省防灾减灾重点实验室项目(2012014)

摘　　要：以青岛GPS标定站为参考,利用GetacZ710三防便携平板(含GPS接收器)对试验点采用单一GPS和启用MSAS辅助定位两种方式,采集多历元单点定位信息,获得试验点CGCS2000高斯投影平面坐标(x,y,h),对不同历元次数、不同采集方式、不同静态精密解算方法求取的坐标值进行分析与评价。研究表明,在北海区MSAS对GPS单点定位精准度具有一定增强效果,稳定性比较可靠。Upon the comparison to the Qingdao GPS calibration station,the precision and accuracy of single point positioning by Getac Z710（with GPS and MSAS receiver）are evaluated and analyzed.The dynamic solution is calculated based on two kinds of sample data,the GPS signals only,or both the GPS and MSAS signals.And the static solution of multi-epoch is calculated by two solution methods：the mean-value method,or the density-median method.Result shows that MSAS is appropriate for enhancing position accuracy in the Bohai,North Yellow Seas and their coastal zones,and there is apositive correlation between sample size and advantage of density-median and it is better than density-median method.

关 键 词：GPS MSAS 密度中位法 精度 

分 类 号：P228[天文地球—大地测量学与测量工程]