GPS/GALILEO多频组合差分定位研究  

GPS/GALILEO Multi-frequency Combined Differential Positioning

作　　者：于兴旺[1] 张小红[1] 聂桂根[2] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079 [2]武汉大学GNSS中心,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2010年第7期821-824,共4页Geomatics and Information Science of Wuhan University

基　　金：国家863计划资助项目(2006AA12Z325);国家创新研究群体科学基金资助项目(40721001);地理空间信息工程国家测绘局重点实验室开放研究基金资助项目

摘　　要：研究了多频多系统卫星导航定位的关键技术,比较了TCAR、CIA、LAMBDA3种多频观测值整周模糊度的单历元解算方法,给出了GPS/GALILEO多频组合定位模型,仿真GPS/GALILEO多频观测数据验证了所用方法的正确性。仿真数据处理结果表明,GPS/GALILEO组合定位能提高基线解算精度,其基线定位误差在2 cm范围内。Studying the key points of multi-frequency navigation system positioning,generally discussing the characteristics of multi-frequency linear combination observations,comparing the means of multi-frequency ambiguity single epoch fixed which are TCAR,CIA and LAMBDA,discussing the mode of GPS / GALILEO multi-frequency combined positioning,and simulating the GPS/GALILEO multi-frequency data.The processing results of simulating data shows that the means of TCAR/CIA/LAMBDA can fix ambiguity single epoch in short baselines and the LAMBDA get the highest success.GPS / GALILEO combined positioning will increase the baseline accuracy to 2 cm.

关 键 词：GPS/GALILEO组合 多频线性组合 单历元整周模糊度解算 

分 类 号：P228.41[天文地球—大地测量学与测量工程]