一种BDS/GPS宽巷模糊度固定方法BDS/GPS WL ambiguity resolution with BeiDou EWL constraint
胡惠卿,高成发,潘树国,夏炎,王彦恒
摘要(Abstract):
针对目前双频伪距与相位观测值线性组合法(MW法)固定BDS/GPS宽巷模糊度所需平滑历元个数多的问题,提出一种附有北斗超宽巷约束的BDS/GPS几何相关的宽巷模糊度固定方法。利用伪距载波组合确定出北斗(0,-1,1)超宽巷模糊度并回代到观测方程,将超宽巷观测方程作为约束条件与BDS/GPS宽巷观测方程联立,以共有的位置参数将上述观测信息融合单历元固定BDS/GPS宽巷模糊度。基于实测数据结果表明,相对于常规的MW法,采用本文提出的有几何BDS/GPS宽巷模糊度固定方法,能够提高BDS/GPS宽巷模糊度的解算精度和时效性,适合中短基线且电离层不活跃情况下BDS/GPS宽巷模糊度的解算。
关键词(KeyWords): BDS/GPS;模糊度;宽巷;有几何模型
基金项目(Foundation): 国家重点研发计划项目(2016YFB0502101);; 国家自然科学基金项目(41574026);; 江苏省重点研发计划项目(BE2016176)
作者(Author): 胡惠卿,高成发,潘树国,夏炎,王彦恒
DOI: 10.16251/j.cnki.1009-2307.2018.05.022
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