.png){kind=icon}
返回
GPS Error Correction With Pseudorange Evaluation Using Three-Dimensional Maps
.png){kind=icon}
PRE
AI
DOI：10.1109/TITS.2015.2432122.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The accuracy of the positions of a pedestrian is very important and useful information for the statistics, advertisement, and safety of different applications. Although the GPS chip in a smartphone is currently the most convenient device to obtain the positions, it still suffers from the effect of multipath and nonline-of-sight propagation in urban canyons. These reflections could greatly degrade the performance of a GPS receiver. This paper describes an approach to estimate a pedestrian position by the aid of a 3-D map and a ray-tracing method. The proposed approach first distributes the numbers of position candidates around a reference position. The weighting of the position candidates is evaluated based on the similarity between the simulated pseudorange and the observed pseudorange. Simulated pseudoranges are calculated using a ray-tracing simulation and a 3-D map. Finally, the proposed method was verified through field experiments in an urban canyon in Tokyo. According to the results, the proposed approach successfully estimates the reflection and direct paths so that the estimate appears very close to the ground truth, whereas the result of a commercial GPS receiver is far from the ground truth. The results show that the proposed method has a smaller error distance than the conventional method.
Keyword:
3-dimensional digital map
GNSS
GPS
non-line-of-sight (NLOS) propagation
ray tracing
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
8.4
论文数:
9.7K
被引数:
6.3W
机构
引用论文
Thrombocytopaenia in lupus as a marker of adverse outcome--seeking Ariadne's thread.png)
Rheumatology
OAAI
RheumatologyIF0
OAAI分享收藏Investigation on a parking control strategy for automotive proton exchange membrane fuel cell车用质子交换膜燃料电池停车控制策略研究Fuel Cells
Fuel CellsIF0
PREAI
分享收藏
查看更多内容