大范围CORS网的GNSS实时定位算法研究  

Study on real-time positioning algorithm for long distance and large scale CORS network

作　　者：李磊[1] 徐爱功[1] 祝会忠[1] 徐宗秋[1] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《测绘科学》2016年第5期10-13,44,共5页Science of Surveying and Mapping

基　　金：辽宁省教育厅一般项目(L2014139)

摘　　要：为了提高长距离大范围基准站的定位精度,该文提出长距离网络RTK流动站整周模糊度的解算方法:解算卫星的双差宽巷整周模糊度,得到准确度更高的流动站初始坐标;进行最小二乘参数估计;然后将流动站整周模糊度全部准确地确定出来。最后使用CORS网实测数据进行实验,结果表明流动站用户能够得到厘米级定位结果,证明了该算法具有很好的可用性。In order to improve the positioning accuracy of long distance and large scale CORS network,the paper proposed a method of integer ambiguity resolution on roving station for long range network RTK：the double difference wide-lane ambiguities were calculated for getting more accurate initial coordinates of the roving station;and the least square parameter estimation was performed;then all of the integer ambiguities of the roving station were accurately determined.Finally,experiment was implemented by the observation data of CORS net,and the positioning results would be at centimeter level,which proved the feasibility of the method.

关 键 词：GNSS实时定位 误差改正数 大范围 整周模糊度 网络RTK 

分 类 号：P228[天文地球—大地测量学与测量工程]