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| 基于局域参考站网络伪距观测的钟差估计及应用 | |
| 引用本文： | 李浩军,王解先,刘三枝.基于局域参考站网络伪距观测的钟差估计及应用[J].同济大学学报(自然科学版),2011,39(9):1355-1358. |
| 作者姓名： | 李浩军 王解先 刘三枝 |
| 作者单位： | 1. 同济大学测量系,上海200092;中国科学院上海天文台,上海200030 2. 同济大学测量系,上海200092;同济大学现代工程测量国家测绘局 重点实验室,上海,200092 3. 南京工业大学土木工程学院,江苏南京,210009 |
| 基金项目： | 国家自然科学基金项目（项目编号）40974018 |
| 摘 要： | 系统地推导了基于局域参考站网络伪距观测进行实时钟差的运算公式,并讨论了以估计得到的钟差进行实时单站定位的数学模型.采用所推导的公式及数学模型,以上海参考站网络和同济大学GPS基准站的伪距观测数据,进行了GPS卫星钟差的实时估计和实时动态单点定位解算.结果表明,单历元伪距观测动态定位结果在北、东、上三个方向的均方根(RMS)值可达到0.444 2,0.522 7,1.110 9m. |
| 关 键 词： | 伪距观测 实时钟差 实时单点定位 |
| 收稿时间： | 5/16/2010 7:57:39 AM |
| 修稿时间： | 7/27/2011 9:00:38 AM |
Estimation and Application of Clock Error Based on Pseudorange Observation of Regional Reference Network |
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| LI Haojun,WANG Jiexian and LIU Sanzhi.Estimation and Application of Clock Error Based on Pseudorange Observation of Regional Reference Network[J].Journal of Tongji University(Natural Science),2011,39(9):1355-1358. | |
| Authors: | LI Haojun WANG Jiexian and LIU Sanzhi |
| Institution: | Department of Surveying and Geo-informatics Engineering, Tongji University, Shanghai 200092, China;Shanghai Astronomical Observatory,Chinese Academy of Sciences, Shanghai 200030, China;Department of Surveying and Geo-informatics Engineering, Tongji University, Shanghai 200092, China;Key Laboratory of Modern Engineering Surveying of the State Bureau of Surveying and Mapping, Shanghai 200092, China;College of Civil Engineering,Nanjing University of Technology, Nanjing 200092, China |
| Abstract: | The formula by which the real-time clocks are estimated is deduced, and the model of precise point positioning is discussed based on the pseudorange observation of regional reference network.The pseudorange observation from Shanghai reference network is used to estimate clocks using the presented method.Using the estimated clocks, the data from Tongji University Station is processed in real-time point positioning mode.The real-time kinematic results indicate that the root mean square (RMS) of three directions such as the North,the East and the Up are 0.444 2, 0.522 7, 1.110 9 m,respectively. |
| Keywords: | pseudorange observation real-time clock error real-time point positioning |
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