| 非差虚拟观测值的网络RTK实现 |
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| 引用本文： | 张绍成,郭际明,孟祥广.非差虚拟观测值的网络RTK实现[J].武汉大学学报(信息科学版),2011,36(10):1226-1230. |
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| 作者姓名： | 张绍成 郭际明 孟祥广 |
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| 作者单位： | 武汉大学测绘学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 济南市科技局科技计划专项资助项目(200705014); 武汉市规划国土管理局信息中心资助项目; 国家国土资源部“百人计划”资助项目 |
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| 摘 要： | 网络RTK是利用多基准站观测值实现流动站附近的误差建模,其中包括对流层、电离层延迟和卫星轨道等误差。讨论了利用VRS技术实现网络RTK中的几个关键技术,包括将多基准站插值所得的双差大气延迟添加到非差模式的VRS观测值中,利用IGS的超快速星历中的预报部分改正广播星历误差和利用恒星日滤波改正VRS的伪距多路径效应。24 ...
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| 关 键 词： | 虚拟参考站 网络RTK GNSS 电离层延迟 对流层延迟 |
An Implementation of Zero Difference VRS Observation for Network-RTK |
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| ZHANG Shaocheng GUO Jiming MENG Xiangguang.An Implementation of Zero Difference VRS Observation for Network-RTK[J].Geomatics and Information Science of Wuhan University,2011,36(10):1226-1230. |
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| Authors: | ZHANG Shaocheng GUO Jiming MENG Xiangguang |
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| Institution: | ZHANG Shaocheng1 GUO Jiming1 MENG Xiangguang1(1 School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | The principle of a VRS based network-RTK system is to use multiple reference stations to correct the error sources around the rover station,including tropospheric delays,ionospheric delays and also orbit errors.In this paper,we mainly discuss how to generate zero difference observations base on the double difference atmospheric delay.To ensure the quick ambiguity resolution on the rover station,the predict part of ultra-rapid IGS orbit is employed to correct the broadcast orbit,and also a sidereal day fitte... |
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| Keywords: | VRS network-RT GNSS ionospheric delay tropospheric delay |
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