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三种GNSS模糊度解算方法成功率比较
引用本文:吴泽民,边少锋,向才炳,纪兵,蒋东方.三种GNSS模糊度解算方法成功率比较[J].海洋测绘,2014,34(6):25-28.
作者姓名:吴泽民  边少锋  向才炳  纪兵  蒋东方
作者单位:1. 海军工程大学导航工程系,湖北武汉,430033
2. 北京卫星导航中心,北京,100094
基金项目:国家973计划,国家自然科学基金
摘    要:介绍了在航模糊度求解的模型。在航模型每个历元均需要多估计一组坐标矢量,因而降低模糊度求解的精度。用取整法、引导取整法和整数最小二乘法三种模糊度固定方法,比较了在静态模型和在航模型下整周模糊度求解的成功率和需要的初始化时间,为动态平台的糊度解算提供参考。

关 键 词:在航模糊度解算  取整法  引导取整法  整数最小二乘法  成功率

Success Rate Comparison of Integer Ambiguity Resolution Methods
WU Zemin,BIAN Shaofeng,XIANG Caibing,JI Bing,JIANG Dongfang.Success Rate Comparison of Integer Ambiguity Resolution Methods[J].Hydrographic Surveying and Charting,2014,34(6):25-28.
Authors:WU Zemin  BIAN Shaofeng  XIANG Caibing  JI Bing  JIANG Dongfang
Institution:WU Zemin,BIAN Shaofeng,XIANG Caibing,JI Bing,JIANG Dongfang( 1.Institute of Navigation Engineering, Naval University of Engineering, Wuhan 430033, China; 2.Beijing Satellite Navigation Center,Beijing 100094,China)
Abstract:The mathematical model of integer ambiguity resolution (IAR) on the fly (OTF) is introduced.One morecoordinate vector has to be estimated in each epoch in this model which could degrade the precision of the ambiguities.The Rounding,Bootstraping and integer least-square (ILS) estimators are applied to fix the ambiguities in both static and OTF models.The success rate and the initialization time cost are compared.The results of this paper can provide a reference for integer ambiguity resolution in dynamic carrier.
Keywords:integer ambiguity resolution on-the-fly  rounding  bootstraping  integer least-square  success rate
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