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长距离网络RTK参考站间双差模糊度快速解算算法
引用本文:祝会忠,刘经南,唐卫明,高星伟.长距离网络RTK参考站间双差模糊度快速解算算法[J].武汉大学学报(信息科学版),2012,37(6):688-692.
作者姓名:祝会忠  刘经南  唐卫明  高星伟
作者单位:1. 武汉大学卫星导航定位技术研究中心,武汉市珞喻路129号,430079
2. 中国测绘科学研究院,北京市莲花池西路28号,100830
基金项目:中国测绘科学研究院基本科研业务费资助项目,国家自然科学基金资助项目,地理空间信息工程国家测绘地理信息局重点实验室开放基金资助项目,国家863计划资助项目
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。

关 键 词:快速解算  长距离  宽巷模糊度  双差模糊度  线性关系

An Algorithm of Instantaneous Double Difference Ambiguity Resolution for Long-Range Reference Stations of Network RTK
ZHU Huizhong,LIU Jingnan,TANG Weiming,GAO Xingwei.An Algorithm of Instantaneous Double Difference Ambiguity Resolution for Long-Range Reference Stations of Network RTK[J].Geomatics and Information Science of Wuhan University,2012,37(6):688-692.
Authors:ZHU Huizhong  LIU Jingnan  TANG Weiming  GAO Xingwei
Institution:1 Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China)(2 Chinese Academy of Surveying and Mapping,28 West Lianhuachi Road,Beijing 100830,China)
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.
Keywords:instantaneous resolution  long-range  wide-lane ambiguity  double difference am- biguity  linear relationship
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