| 基于三频GIF组合的载波相位观测精度分析 |
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| 引用本文： | 辛国栋,黄令勇,黄志勇.基于三频GIF组合的载波相位观测精度分析[J].大地测量与地球动力学,2018,38(3):273-275. |
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| 作者姓名： | 辛国栋 黄令勇 黄志勇 |
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| 作者单位： | 中国天绘卫星中心;地理信息工程国家重点实验室; |
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| 摘 要： | 鉴于三频GNSS在削弱观测误差方面的优势，基于GNSS三频载波观测独立等精度的假设，在利用滑动多项式拟合实现三频载波无几何无电离层GIF组合观测精度快速估计基础上，研究了一种载波观测精度快速估计算法。GPS和BDS三频数据实验结果表明，该算法可实现三频载波观测精度的快速估计，为快速精密单点定位提供准确的随机函数模型。
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| 关 键 词： | 三频GIF组合 载波相位 观测精度 |
Accuracy Analysis of Carrier Phase Observation Based on Triple-Frequency GIF Combinations |
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| XIN Guodong,HUANG Lingyong,HUANG Zhiyong.Accuracy Analysis of Carrier Phase Observation Based on Triple-Frequency GIF Combinations[J].Journal of Geodesy and Geodynamics,2018,38(3):273-275. |
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| Authors: | XIN Guodong HUANG Lingyong HUANG Zhiyong |
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| Abstract: | GNSS triple-frequency is advantageous in reducing observation errors, so this paper advances a new algorithm of fast carrier phase observation accuracy estimation. Based on the assumption that GNSS triple-frequency carrier observations are independent, we use sliding polynomial fitting to get the observational precision of triple-frequency carrier GIF(Geometry-Free Ionosphere-Free) combinations. GPS and BDS triple-frequency experimental data results show that the algorithm can be used to quickly estimate the triple-frequency carrier phase observation precision, so it can provide a fast and accurate random function model for single precise point positioning. |
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| Keywords: | triple-frequency GIF combination carrier phase observation accuracy |
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