BDS多频组合模糊度解算方法研究(点击标题下载全文) 已下载

作者:李克昭孟福军丁安民韩梦泽孙江锋

作者单位:河南理工大学测绘与国土信息工程学院

摘要:正确固定载波相位的整周模糊度是利用GNSS进行高精度定位的关键。分析了三频组合观测值模型及相关误差分析;通过计算得到了北斗三频载波数据组合观测值的属性指标,并根据组合观测值的选取标准,给出了其中具有代表性的组合;然后选取了其中两组较好的组合观测值,并模拟解算出了其单历元整周模糊度。计算结果表明:所计算的模糊度值波动在0.5周之内,说明该方法的整周模糊度固定效果较好。

基金:国家自然科学基金资助项目(41202245,41272373);河南理工大学骨干教师资助项目(72105/090);

关键词:北斗导航系统;模糊度解算;组合观测值;TCAR方法;

DOI:10.16186/j.cnki.1673-9787.2015.01.011

分类号:P228.4

Abstract:It is the key to fix carrier phase integer ambiguity properly in high-precision positioning by using GNSS.The model for three carrier combination observation is introduced and the related observation errors are analyzed.The attribute indexes about BDS three frequency carrier data of combination observations are calculated firstly.And depending on the selected standard of combination observations,some representative combination observations are proposed.Then,from the representative combination observations,two combination observations are selected,and the single epoch integer ambiguity numbers of them are simulated and calculated.The results show that the integer ambiguity error numbers are within 0.5 circles,and also show that the fixed carrier phase integer ambiguity method is valuable.

 
 
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