| 基于IGU预报轨道实时估计精密卫星钟差 |
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| 引用本文： | 李黎,匡翠林,朱建军,陈永奇.基于IGU预报轨道实时估计精密卫星钟差[J].大地测量与地球动力学,2011,31(2):111-116. |
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| 作者姓名： | 李黎 匡翠林 朱建军 陈永奇 |
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| 作者单位： | 1)中南大学测绘与国土信息工程系,长沙 410083;2)香港理工大学土地测量与地理资讯学系,香港 |
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| 基金项目： | 国家自然科学基金(40974007,41004012); 中南大学前沿研究计划(2009QZZD002) |
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| 摘 要： | 针对目前实时精密单点定位中,GPS卫星实时钟差服务所存在的精度问题,提出了一种基于IGU轨道的实时钟差估计方法.该方法基于IGU轨道,采用全球参考站非差载波相位观测值,进行实时钟差估计.数值结果表明:实时估计的卫星钟差与IGS最终产品的偏差大部分小于0.3 ns,平均优于0.2 ns;采用估计所得的实时钟差进行PPP静...
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| 关 键 词： | 实时 卫星钟差估计 精密单点定位 IGU数据产品 预报轨道 |
REAL-TIME ESTIMATION OF PRECISE SATELLITES CLOCK BIAS BASED ON IGU PREDICTED ORBIT |
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| Li Li,Kuang Cuilin,Zhu Jianjun,Chen Yongqi.REAL-TIME ESTIMATION OF PRECISE SATELLITES CLOCK BIAS BASED ON IGU PREDICTED ORBIT[J].Journal of Geodesy and Geodynamics,2011,31(2):111-116. |
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| Authors: | Li Li Kuang Cuilin Zhu Jianjun Chen Yongqi |
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| Institution: | Li Li 1),Kuang Cuilin 1),Zhu Jianjun 1) and Chen Yongqi 1,2) 1)Department of Survey Engineering and Geomatics,Central South University,Changsha 410083 2)Department of Land Surveying and Geo-informatics,The Hong Kong Polytechnic University,Hong Kong |
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| Abstract: | Aiming at the accuracy of the GPS satellite clock bias service the real-time precise point positioning(PPP) currently,a method for real-time estimating the satellite clock bias based on the basis of IGU(IGS Ultra-rapid) predicted orbits is put forward.In this method the un-differenced carrier phase observations of global reference stations is used to estimate the real-time clock bias.Numerical calculation results show that most of deviations between the estimated satellite clock bias and the IGS final produ... |
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| Keywords: | real-time satellite clock estimation precise point positioning IGU data product predicted orbit |
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