| 削弱对流层延迟对GPS精密定位影响的方法研究 |
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| 引用本文： | 殷海涛,熊永良,黄丁发. 削弱对流层延迟对GPS精密定位影响的方法研究[J]. 工程勘察, 2005, 0(1): 43-46 |
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| 作者姓名： | 殷海涛 熊永良 黄丁发 |
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| 作者单位： | 西南交通大学,测量工程系,四川,成都,610031;西南交通大学,测量工程系,四川,成都,610031;西南交通大学,测量工程系,四川,成都,610031 |
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| 基金项目： | 国家自然科学基金资助项目 (No :4 0 2 710 91)，教育部优秀教师资助计划 (No:2 0 0 310 9) |
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| 摘 要： | 本文在分析对流层延迟对GPS精密定位影响的基础上 ,研究了采用高度角加权模型 ,并同时估计天顶延迟和水平梯度参数的方法 ,设计了数据处理方案 ,然后利用IGS数据 ,采用GAMIT软件进行分析解算 ,验证了这种方法的有效性 ,得出了一些有用的结论。
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| 关 键 词： | GPS精密定位 对流层延迟 权重 水平梯度 |
On the Mitigation of Tropospheric Delay for Precise GPS Positioning |
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| Yin Haitao et al.. On the Mitigation of Tropospheric Delay for Precise GPS Positioning[J]. Geotechnical Investigation & Surveying, 2005, 0(1): 43-46 |
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| Authors: | Yin Haitao et al. |
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| Affiliation: | Yin Haitao et al. |
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| Abstract: | Troposheric delay is one of the main error sources in precise GPS positioning.So far,many studies have been made on this problem.Because of the complicity of tropospheric error,the accuracy of existing tropospheric delay model cannot meet the needs of precise positioning.Based on analysis of tropospheric delay on precise GPS positioning,this paper presents a method,in which the elevation-dependent weighting model is applied,and the troposheric zenith delay and the horizontal gradient parameter are estimated at the same time.Data processing schemes are designed and data from IGS and GAMIT software used to test the validity of the proposed method.Some useful conclusions are given. |
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| Keywords: | GPS precise positioning tropospheric delay weighting horizontal gradient |
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