长距离网络RTK参考站间双差模糊度快速解算算法
An Algorithm of Instantaneous Double Difference Ambiguity Resolution for Long-Range Reference Stations of Network RTK
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摘要: 提出了一种长距离网络RTK参考站间双差整周模糊度快速解算方法,该方法利用双频载波相位模糊度间的线性关系确定宽巷模糊度,然后选取双频载波相位的备选模糊度组合,通过计算参考站间对流层误差和轨道误差等非色散误差,对双频载波相位整周模糊度进行搜索。实验结果表明,此方法能够快速、可靠地解算长距离参考站间的双差整周模糊度。Abstract: A new algorithm of instantaneous double difference ambiguity resolution for long-range reference stations of Network RTK is proposed.The wide-lane ambiguity are determined by the linear relationship between double frequency carrier phase ambiguities.Then candidates of double frequency carrier phase ambiguities can be selected,the integer ambiguities are searched out through the computation of non-dispersive error e.g.tropospheric delay and orbit offset between reference stations.Test data were used to evaluate the algorithm.The results indicate that this algorithm can provide reliable double difference integer ambiguities very quickly for long-range reference stations.
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