陈文涛,程鹏飞,徐彦田,赵硕,刘扬

• 1:中国测绘科学研究院
• 2:辽宁工程技术大学测绘与地理科学学院

摘要(Abstract)：

针对GPS/BDS中长距离RTK定位中模糊度维数的增加、观测噪声以及大气残余误差的影响,致使模糊度固定率较低,难以实现全模糊度固定(FAR)这个问题。该文采用扩展卡尔曼滤波模型,对电离层延迟和相对天顶方向对流层延迟误差进行参数估计,提出了一种部分模糊度固定(PAR)方法。利用2018年8月27日河北CORS站两条中长基线的GPS和BDS实测数据对该算法进行了验证。结果表明,相比于FAR方法,PAR方法能够改善定位结果精度和明显提高模糊度Ratio值以及固定率,保证了定位的稳定性和可靠性。

关键词(KeyWords)： GPS/BDS;部分模糊度;RTK;卡尔曼滤波;对流层延迟;电离层延迟

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划课题项目(2016YFB0502101,2016YFB0502105);; 中国测绘科学研究院基本科研业务费资助项目(AR1901,AR1903)

作者(Author): 陈文涛,程鹏飞,徐彦田,赵硕,刘扬

DOI: 10.16251/j.cnki.1009-2307.2020.11.005

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