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首页> 外文会议>Proceedings of the 22nd international technical meeting of the Satellite Division of the Institute of Navigation (ION GNSS 2009) >Merging Low-cost Receivers in a GNSS Network of Permanent Stations
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Merging Low-cost Receivers in a GNSS Network of Permanent Stations

机译：在永久站的GNSS网络中合并低成本接收器

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The number of low-cost receivers that are able to guarantee sub-metrical accuracy is increasing very fast. This fact motivated our research to investigate the behavior of the receivers when they are used into a Network of GNSS permanent stations. rnThree mass-market GPS receivers commonly employed in tourism and hiking were used,in a unconventional setting using a GNSS network:two of them were built in the Nineties and one is more recent.Besides,other more professional GIS receivers were tested,which have been present on market for the last few years.All of them were used for many tests performed both in real time way and in post-processing one. rnIn order to carry out the tests,the experimental network of GNSS permanent stations in the Regione Piemonte(Italy) was used.Differential corrections from NTRIP servers and from direct RTCM streams were used during the real time experiments,whereas RINEX files from a single network station and a Virtual Reference Station were used as reference in post-processing tests. rnThe data acquisitions were made on points with known coordinates which were adjusted in the IGS05 reference system.Furthermore,the data stored with the mentioned receivers were acquired under the same GPS satellite condition in order to allow a right comparison among each test. rnThe goals of this research is to understand whether the use of low cost receiver in DGPS and in post-processing mode is possible for application fields where a metric(or less)accuracy is required,such as vehicle navigation or GIS surveys.
机译：能够保证亚公制精度的低成本接收器的数量正在迅速增加。这一事实促使我们进行研究，以研究将接收器用于GNSS永久站点网络时的行为。 rn在非常规环境下，使用GNSS网络使用了三种在旅游和远足中普遍使用的大众市场GPS接收器：其中两台是在90年代建造的，另一台是最近的。此外，还测试了其他更专业的GIS接收器，在过去的几年中一直存在于市场上。所有这些都用于实时和后处理测试中。 rn为了进行测试，使用了位于意大利皮埃蒙特地区的GNSS永久站点的实验网络。在实时实验过程中，使用了来自NTRIP服务器和直接RTCM流的差分校正，而来自单个网络的RINEX文件工作站和虚拟参考站用作后处理测试中的参考。 rn数据的获取是在具有已知坐标的点上进行的，这些点已在IGS05参考系统中进行了调整。此外，与上述接收器一起存储的数据是在相同的GPS卫星条件下获取的，以便在每次测试之间进行正确的比较。 rn本研究的目的是了解在需要度量（或以下）精度的应用领域（例如，车辆导航或GIS调查）中是否可能在DGPS和后处理模式下使用低成本接收器。

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