Electron map is an important part in vehicle position and azimuth determines system.

电子地图是车载定位定向系统中的重要组成部分。

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Through map matching, vehicle position and road section in the digital map were bound.

利用地图匹配技术，实现了车辆位置与电子地图中路网弧段的关联。

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The latter estimates the vehicle position by synchronizing the speed vector and the position vector measured by Beidou system.

后者首先同步车速矢量与北斗卫星测量得到的车辆位置矢量，再根据融合结果估算车辆定位信息。

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Louis workforce promotional vehicle and position them as a thought leader in the space.

FORBES: Strong Regional Workforces Are the Best Ambassadors

"We have managed to improve the determination of a vehicle's position in critical cases by between 50 and 90%, " said researcher David Martin.

BBC: Spanish scientists develop more accurate sat-nav system

However, in cities where the signal bounces off buildings and trees, the calculation of a vehicle's position can be off by more than 50m.

BBC: Spanish scientists develop more accurate sat-nav system