| 多卫星导航系统精密单点定位精度分析 |
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| 引用本文： | 付青.多卫星导航系统精密单点定位精度分析[J].全球定位系统,2014(6):42-46. |
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| 作者姓名： | 付青 |
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| 作者单位： | 武汉大学遥感信息工程学院,湖北武汉430079 |
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| 摘 要： | 随着北斗卫星导航系统（BDS）于2012年底正式提供亚太地区区域性服务，研究BDS与其他卫星导航系统的组合定位尤为重要。本文主要分析BDS与GPS、GLONASS组合精密单点定位（PPP），统一了三类卫星的时间系统和空间系统，给出了PPP非差组合模型，利用九峰站全天观测数据进行实验，得到初步结论：组合定位系统能够减少单系统的收敛时间；组合定位系统的定位精度比单系统的定位精度高。
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| 关 键 词： | BDS GPS GLONASS 组合定位 精度 |
Accuracy Analysis of Multi-Satellites Navigation System Precise Point Positioning |
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| FU Qing.Accuracy Analysis of Multi-Satellites Navigation System Precise Point Positioning[J].Gnss World of China,2014(6):42-46. |
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| Authors: | FU Qing |
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| Institution: | FU Qing (Remote Sensing Information Engineering College of Wuhan University, Hubei Wuhan 430079, China) |
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| Abstract: | With the Beidou satellite navigation system （BDS） officially provides regional service for the Asia Pacific region at the end of 2012, studying the combined positioning of BDS and other satellite navigation system is particularly important. In this paper, mainly an- alyzes the BDS, GPS and GLONASS precise point positioning （PPP）, firstly unifies the time system and coordinate system among the three types of satellites, then gives the PPP undif- ferenced model, finally uses the JFNG station 24 hour observation data all the day, gets two preliminary conclusions： The combined positioning mode can reduce the convergence time compared the single system; The accuracy of the combined positioning mode is better than the single system. |
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| Keywords: | BDS GPS GLONASS combined positioning accuracy |
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