GPS整周模糊度单历元DUFCOM方法扩展及定位解精度研究  

Extended DUFCOM of Ambiguity Resolution for Single Epoch GPS Positioning Solution Analysis

作　　者：郭际明[1,2] 周命端[1,2] 黄长军[1] 伍孟琪[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079 [2]精密工程与工业测量国家测绘地理信息局重点实验室,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2013年第10期1221-1224,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(41174009);精密工程与工业测量国家测绘地理信息局重点实验室开放基金资助项目(PF2011-19)

摘　　要：分析了双频相关法(DUFCOM)单历元解算GPS L1相位观测值整周模糊度理论,并对其进行了方法扩展,提出了单历元直接确定GPS L2、Ln和Lw相位观测值整周模糊度新方法。给出了扩展方法的特征值条件,从理论和实践角度对4种相位观测值在整周模糊度解算效率和定位解精度两方面作了对比分析。The ambiguity resolution theory of GPS L1 phase observation using single epoch data based on DUFCOM was analyzed, the extended DUFCOM was developed. A new single epoch ambiguity fixing method was proposed for GPS L2, Ln and Lw. The property of the extended method was given, furthermore,and the efficiency of ambiguity resolution and the accuracy of positioning solution for the above four phase observations were compared in theo- ry and result.

关 键 词：GPS整周模糊度 相位观测值 DUFCOM 单历元定位 

分 类 号：P228.41[天文地球—大地测量学与测量工程]