Effect of antenna location on GNSS positioning for ITS applications

2016 European Navigation Conference (ENC) Pub Date : 2016-05-01 DOI:10.1109/EURONAV.2016.7530543

M. Kirkko-Jaakkola, S. Feng, Yanrong Xue, Xin Zhang, Salomon Honkala, S. Soderholm, L. Ruotsalainen, W. Ochieng, H. Kuusniemi

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引用次数: 7

Abstract

The proliferation of GNSS-receiving mobile devices in the consumer market and the growth of the Intelligent Transportation Systems sector have raised a lot of interest in low-cost precise positioning. However, GNSS signal quality is degraded inside the metal body of a vehicle, which is where the antenna of a portable device is to be located. This article investigates the effect of antenna location on precise low-cost GNSS positioning for a road vehicle. We compare a roof-mounted GNSS receiver with an identical receiver having the antenna on the dashboard and a tailored smartphone also located inside the cabin; both the availability of raw carrier phase measurements and the resulting horizontal precise point positioning accuracy are evaluated. The test results show that the 90 % circular error probable is degraded by several meters inside the vehicle. Moreover, most of the evaluated accuracy metrics indicate that the low-cost GNSS receiver with antenna inside the cabin achieved a positioning accuracy at least 50 % better than the smartphone located next to it when using the same satellite systems.

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天线定位对ITS应用GNSS定位的影响

消费者市场上接收gnss的移动设备的激增和智能交通系统部门的增长引起了人们对低成本精确定位的极大兴趣。但是，在放置便携式设备天线的金属车身内部，GNSS信号质量会下降。本文研究了天线定位对道路车辆低成本GNSS精确定位的影响。我们将安装在车顶的GNSS接收器与安装在仪表板上的相同接收器和安装在车内的定制智能手机进行了比较;评估了原始载波相位测量的可用性和由此产生的水平精确点定位精度。试验结果表明，90%的圆误差可能在车内降低了数米。此外，大多数评估的精度指标表明，在使用相同的卫星系统时，在机舱内安装天线的低成本GNSS接收器的定位精度至少比位于其旁边的智能手机高50%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 European Navigation Conference (ENC)

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