摘要
提出了一种北斗中长距离基准站间整周模糊度快速解算方法,并详细给出了该方法的数学模型、方法步骤与数据检验结果。该方法先由无几何无电离层组合模型求得超宽巷模糊度,再通过北斗系统无电离层组合IFS0模糊度分解来求解宽巷模糊度,最后根据模糊度间的线性约束关系确定各个频点上的双差模糊度。经实验算例验证,该方法快速、稳定,只需几个历元即可确定中长距离基准站间的双差整周模糊度。
An algorithm of instantaneous integer ambiguity resolution for reference stations of BDS network RTK is proposed in this paper. The mathematic models, implementation process and result analysis are given in detail. First, the extra-wide-lane ambiguity is calculated by using geometry-free and ionosphere-free combination. Then, the wide-lane ambiguity is deduced by using the ionospherefree combination IFS0. Finally, the ambiguities are determined by linear relation among triple-frequency ambiguities. This algorithm is rapid and stable by test. Furthermore, the integer ambiguities among long-range baselines of BDS can be fixed instantaneously.
出处
《信息工程大学学报》
2016年第6期760-763,共4页
Journal of Information Engineering University
基金
国家自然科学基金资助项目(41274045)
关键词
北斗
网络RTK
双差模糊度
线性关系
BDS
network RTK
double-difference ambiguity
linear relationship
