| GPS静态精密单点定位算法精度分析 |
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| 引用本文： | 符华年,张旭东,胡玉坤.GPS静态精密单点定位算法精度分析[J].测绘通报,2019,0(2):95-98. |
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| 作者姓名： | 符华年 张旭东 胡玉坤 |
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| 作者单位： | 宁波市测绘设计研究院,浙江 宁波,315042;宁波市测绘设计研究院,浙江 宁波,315042;宁波市测绘设计研究院,浙江 宁波,315042 |
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| 基金项目： | 宁波市科技局软科学课题（2017A10066） |
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| 摘 要： | 采用精密轨道和钟差，利用Bernese软件解算得到亚洲地区13个IGS跟踪站的站坐标、对流层ZTD和接收机钟差，将解算的结果与CODE发布的结果对比发现：静态PPP算法解算的N方向收敛精度明显优于E方向和U方向，4~6 h后，坐标偏差在1 cm左右；NEU RMS均值分别为0.45、0.29、0.69 cm，ZTD RMS均值为0.85 cm，接收机钟差RMS均值为0.14 ns。试验表明：精密单点定位算法具有较高的精度和可靠性，可为实际工程测量及相关地球物理信号研究提供理论依据。
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| 关 键 词： | CODE IGS跟踪站 对流层ZTD 接收机钟差 |
| 收稿时间： | 2018-08-28 |
| 修稿时间： | 2018-12-18 |
Accuracy analysis of GPS static precise point positioning algorithm |
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| FU Huanian,ZHANG Xudong,HU Yukun.Accuracy analysis of GPS static precise point positioning algorithm[J].Bulletin of Surveying and Mapping,2019,0(2):95-98. |
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| Authors: | FU Huanian ZHANG Xudong HU Yukun |
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| Institution: | Ningbo Institute of Surveying and Mapping Design, Ningbo 315042, China |
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| Abstract: | This paper uses precision orbit and clock difference to calculate thirteen IGS tracking stations' coordinates, tropospheric ZTD and receiver clock difference in Asia by Bernese software. Compared with the results issued by CODE, it is found that the N direction convergence accuracy of the static PPP algorithm is obviously better than E direction and U direction, and the coordinate deviation after 4 to 6 hours nearly 1 cm, the NEU RMS mean is 0.45, 0.29, 0.69 cm, ZTD RMS mean is 0.85 cm, receiver clock difference RMS mean is 0.14 ns. The experiment shows that the precision single point positioning algorithm has high accuracy and reliability, it can provide theoretical basis for the actual engineering measurement and related geophysical signal research. |
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| Keywords: | CODE IGS tracking station tropospheric ZTD receiver clock error |
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