摘要
为解决DUFCOM方法单历元解算GPS双差整周模糊度因观测卫星数多导致解算效率低而影响GPS高频数据实时动态解算这一问题,同时考虑到DC算法解算效率高的优点,对观测卫星进行筛选分级处理,提出了一种快速确定算法。算例表明,该算法可避免在应用DUFCOM方法中二级卫星对一级卫星双差整周模糊度解算效率的影响,使得GPS单历元确定双差整周模糊度的效率显著提高,达到了GPS高频数据实时动态解算的目的。
In order to solve the problem of low efficiency in high frequency GPS real time data processing when the number of observed satellites exceeds 6-8 while using the DUFCOM method, combining DC algorithm with the advantage of extremely high efficiency, a fast fixed algorithm of GPS single epoch ambiguity resolution by screening and classifying pro- cessing for the observed satellites is proposed. The results from the example show that the fast fixed algorithm could avoid the influence of resolution efficiency of double-difference in- teger ambiguity for the second-level satellites the efficiency for ambiguity resolution greatly, al time kinematic data processing. acting on first-level satellites, which improve and achieve the aim to high frequency GPS re-
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2013年第7期813-817,共5页
Geomatics and Information Science of Wuhan University
基金
武汉大学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研究基金资助项目(PF2011-19
PF2011-18)
广西空间信息与测绘重点实验室开放研究基金资助项目(桂科能1103108-12)
中央高校基本科研业务费专项资金资助项目(20102140101000002)
关键词
GPS单历元
卫星筛选分级处理
DUFCOM方法
DC算法
整周模糊度快速确定
GPS single epoch
screening and classifying processing for the observed satel-lites
DUFCOM method
DC algorithm
fast resolution of integer ambiguity
