| Helmert方差分量估计在GPS/GLONASS组合定位中的应用 |
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| 引用本文： | 马丙浩;田林亚;张勇.Helmert方差分量估计在GPS/GLONASS组合定位中的应用[J].东北测绘,2013(4):103-105. |
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| 作者姓名： | 马丙浩;田林亚;张勇 |
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| 作者单位： | 河海大学地球科学与工程学院 |
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| 摘 要： | 介绍了GPS/GLONASS组合定位模型,探讨了组合定位解算中的时间系统转化和坐标系统转化的问题,研究了利用Helmert分差分量估计进行验后定权的方法及其步骤,对IGS基准站nano某一天的观测数据进行组合定位解算与分析,认为在GPS/GLONASS组合定位解算中选择1∶0.210 6的权比,能够提高单点定位的精度。
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| 关 键 词： | Helmert方差分量估计 GPS GLONASS 组合定位 定权 |
Application of Helmert Variance Component Estimation in GPS/GLONASS Combined Positioning |
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| Institution: | MA Bing-hao,TIAN Lin-ya,ZHANG Yong(School of Earth Sciences and Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | The paper introduces GPS / GLONASS combined positioning model to explore the combination of position resolution in the time of transformation and coordinate system transformation,uses the Helmert points difference component estimation to study the methods and steps of the weight,analyses observation data combined positioning of nano,IGS base station,and selects the weight of 1∶ 0.210 6 in GPS / GLONASS combination to improve the accuracy of single point positioning. |
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| Keywords: | Helmert variance component estimation GPS GLONASS combined positioning weight |
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