| 天顶对流层延迟计算方法研究 |
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| 引用本文： | 朱爽,姚宜斌,张瑞.天顶对流层延迟计算方法研究[J].大地测量与地球动力学,2011,31(3):120-123. |
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| 作者姓名： | 朱爽 姚宜斌 张瑞 |
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| 作者单位： | 武汉大学测绘学院，武汉 430079 |
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| 基金项目： | 国家自然科学基金(40774008); 中央高校基本科研业务费专项资金 |
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| 摘 要： | 依据精密单点定位(PPP)原理编写天顶对流层延迟估计程序,分别利用所编程序和GAMIT软件进行实测数据解算,将所得数据与IGS网站提供数据进行对比分析,结果显示PPP与双差法估计对流层延迟都有较高精度;但在双差法解算过程中发现,无远距离测站参与解算会影响对流层延迟估计的精度.
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| 关 键 词： | 天顶对流层延迟 GPS气象学 水汽 精密单点定位(PPP) 双差法 |
RESEARCH ON CALCULATION METHODS OF ZENITH TROPOSPHERIC DELAY |
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| Zhu Shuang,Yao Yibin,Zhang Rui.RESEARCH ON CALCULATION METHODS OF ZENITH TROPOSPHERIC DELAY[J].Journal of Geodesy and Geodynamics,2011,31(3):120-123. |
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| Authors: | Zhu Shuang Yao Yibin Zhang Rui |
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| Institution: | Zhu Shuang,Yao Yibin and Zhang Rui(School of Geodesy and Geomatics,Wuhan University,Wuhan 430079) |
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| Abstract: | On the basic of theory of PPP(Precise Point Positioning),we developed a program to calculate the ZTD,then we used the program and GAMIT to process the real observations.Compared the results with the data provided by the IGS,it is found that two methods both have high accuracy.Howver,the process results without far-away station data are of very low accuracy,it shows the advantage of Precise Point Positioning in the calculation of ZTD. |
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| Keywords: | Zenith Total Delay(ZTD) GPS meteorology water vapor Precise Point Positioning(PPP) double-differenced |
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