Real-time multi-GNSS single-frequency precise point positioning
Real-time multi-GNSS single-frequency precise point positioning
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DOI：
10.1007/s10291-017-0653-2
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发表时间：
2017-10-01
期刊：
影响因子：
4.9
通讯作者：
Tiberius, Christian C. J. M.
中科院分区：
文献类型：
--
作者：
de Bakker, Peter F.;Tiberius, Christian C. J. M.
精密单点定位（PPP）是一种流行的全球定位系统（GPS）处理策略，由于其高精度而无需额外的GPS基础设施。单频PPP（SF-PPP）在这方面更进了一步，不再依赖昂贵的双频GPS接收机，同时保持相对较高的定位精度。在高速公路上使用仅GPS的SF-PPP进行车道识别和绘图已经成功地进行了演示。然而，研究表明，性能在很大程度上取决于可用卫星的数量，从而限制了SF-PPP在相对开放地区的应用。我们调查的适用性是否可以扩展，从只使用GPS移动到使用多个全球导航卫星系统（GNSS）。除全球定位系统外，俄罗斯的全球轨道导航卫星系统是目前唯一功能齐全的全球导航卫星系统，因此被选中。我们介绍了我们的方法，多GNSS SF-PPP，并通过几个实验证明其性能。结果表明，多GNSS SF-PPP确实优于仅GPS SF-PPP，特别是在天空能见度降低的情况下。
Precise Point Positioning (PPP) is a popular Global Positioning System (GPS) processing strategy, thanks to its high precision without requiring additional GPS infrastructure. Single-Frequency PPP (SF-PPP) takes this one step further by no longer relying on expensive dual-frequency GPS receivers, while maintaining a relatively high positioning accuracy. The use of GPS-only SF-PPP for lane identification and mapping on a motorway has previously been demonstrated successfully. However, the performance was shown to depend strongly on the number of available satellites, limiting the application of SF-PPP to relatively open areas. We investigate whether the applicability can be extended by moving from using only GPS to using multiple Global Navigation Satellite Systems (GNSS). Next to GPS, the Russian GLONASS system is at present the only fully functional GNSS and was selected for this reason. We introduce our approach to multi-GNSS SF-PPP and demonstrate its performance by means of several experiments. Results show that multi-GNSS SF-PPP indeed outperforms GPS-only SF-PPP in particular in case of reduced sky visibility.