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arXiv 2005.00704eess.SPcs.RO
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基于汽车雷达的50厘米城市定位

Automotive-Radar-Based 50-cm Urban Positioning

The University of Texas at Austin(德克萨斯大学奥斯汀分校)

Lakshay Narula, Peter A. Iannucci, Todd E. Humphreys

摘要:

在阳光充足和干燥的气候范围之外部署自动地面车辆(AGV)将需要基于无线电波而不是近可见光辐射的子车道级定位技术。与人类视觉一样,激光雷达和相机在低能见度条件下表现不佳。本文开发并演示了一种基于商用低成本汽车雷达的强大的50厘米精度的城市地面定位的新技术。该技术计算效率高,但获得了全局最优的平移和航向解,避免了城市雷达环境中重复模式引起的局部最小值。性能评估广泛和现实的城市数据集。与地面实况的比较表明,当加上稳定的短期里程计,该技术保持95百分位误差低于50厘米的水平位置和1度的航向。

英文摘要:

Deployment of automated ground vehicles (AGVs) beyond the confines of sunny and dry climes will require sub-lane-level positioning techniques based on radio waves rather than near-visible-light radiation. Like human sight, lidar and cameras perform poorly in low-visibility conditions. This paper develops and demonstrates a novel technique for robust 50-cm-accurate urban ground positioning based on commercially-available low-cost automotive radars. The technique is computationally efficient yet obtains a globally-optimal translation and heading solution, avoiding local minima caused by repeating patterns in the urban radar environment. Performance is evaluated on an extensive and realistic urban data set. Comparison against ground truth shows that, when coupled with stable short-term odometry, the technique maintains 95-percentile errors below 50 cm in horizontal position and 1 degree in heading.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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