Influence of multi path on positioning accuracy in a low sky view factor environment
Influence of multi path on positioning accuracy in a low sky view factor environment
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低天视因子环境下多路径对定位精度的影响
DOI：
10.1109/ictc.2017.8190983
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
S. Tatsuguchi; Y. Oshima; H. Oguma; S. Kameda; N. Suematsu
中科院分区：
文献类型：
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作者：
Ren SHINOZAKI ; Hiroshi OGUMA ; Suguru KAMEDA ; Noriharu SUEMATSU;S. Tatsuguchi; Y. Oshima; H. Oguma; S. Kameda; N. Suematsu
近年来，全球卫星导航系统（GNSS）对位置信息的利用有望在各个领域得到应用。然而，由于定位精度随测量环境的变化而变化，因此很难显示出明确的精度。将天景因子（SVF）引入定位精度评价中，在SVF高或低的地方对长时间数据的定位精度进行评价。在svf高的地方，连续24小时获得精确的定位精度，定位精度变化很小。另一方面，在SVF较低的地方，定位精度变化较大。通过对多通道的分析，发现这种变化是由多通道和可见卫星数量的差异引起的。
Recently, utilization of position information by global navigation satellite system (GNSS) is expected in various fields. However, it's difficult to show unambiguously accuracy since positioning accuracy varies by measurement environment. We bring sky view factor (SVF) to evaluation of positioning accuracy, and evaluate it positioning accuracy of long time data in the places where SVF are high or low. In place where SVFs is high, precise positioning accuracy is got continuously for 24 hours, and it is found that variation of positioning accuracy is little. On the other hand, in place where SVF is low, positioning accuracy greatly varies. As the result of analysis of multi pass, it is found that the variation is caused by multi pass and difference of number of visible satellite.