Simulation of GNSS Availability in Urban Environments Using a Panoramic Image Dataset
Simulation of GNSS Availability in Urban Environments Using a Panoramic Image Dataset
复制标题
使用全景图像数据集模拟城市环境中的 GNSS 可用性
DOI：
10.1155/2017/8047158
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Nagai Masahiko
中科院分区：
文献类型：
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作者：
Tongleamnak Sakpod;Nagai Masahiko
全球导航卫星系统（GNSS）在城市环境中的定位性能受到卫星可用性差的阻碍，因为城市环境中有许多人造和自然物体阻碍卫星信号。为了评估GNSS在城市中的可用性，本文提出了一个软件模拟的GNSS在城市地区的可用性，使用全景图像数据集从谷歌街景。应用摄影测量图像处理技术重建鱼眼天空图像和检测信号障碍物。模拟结果和真实的世界观测结果在曼谷和东京的两个比较也提出和讨论的精度评估。
Performance of Global Navigation Satellite System (GNSS) positioning in urban environments is hindered by poor satellite availability because there are many man‐made and natural objects in urban environments that obstruct satellite signals. To evaluate the availability of GNSS in cities, this paper presents a software simulation of GNSS availability in urban areas using a panoramic image dataset from Google Street View. Photogrammetric image processing techniques are applied to reconstruct fisheye sky view images and detect signal obstacles. Two comparisons of the results from the simulation and real world observation in Bangkok and Tokyo are also presented and discussed for accuracy assessment.