| 摘要: |
| 从地图匹配技术的基本原理出发，比较了几种典型的点到线型地图匹配算法的优缺点以及适用范围。结合实际行车轨迹连续、特征明显的特点，提出了一种基于道路几何特征的地图匹配方法，并从候选路径确定、匹配路径确定和匹配点求取三方面对算法进行了详细说明。最后通过设计试验，验证了其可行性和准确性。经验证，采用此地图匹配方法可将惯性定位定向的定位精度提高到20m以内。 |
| 关键词: 地图匹配 候选路段 匹配路径 几何特征 |
| DOI： |
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| 基金项目:装备预先研究项目（30401020402） |
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| Study on Map Matching Method Based on Geometric Features of Road |
| LIU Feng,GUO Yang,ZHENG Xin,LI Dian-xi |
| (Beijing Institute of Automatic Control Equipment, Beijing 100074, China;National University of Defense Technology, Changsha 410000, China;China Aerospace Science & Industry Corp, Beijing 100048, China) |
| Abstract: |
| Based on the basic principle of map matching technology, the advantages and disadvantages of several typical point-to-line map matching algorithms and their application scope are compared. Considering the continuous and obvious characteristics of the actual trajectory, a map matching method based on road geometric features is proposed. The algorithm is described in detail from three aspects: candidate path determination, matching path determination and matching point extraction. Finally, the feasibility and accuracy are verified by experiments. It shows that the positioning accuracy of inertial positioning and orientation can be improved to less than 20 m by using the proposed map matching method in this paper. |
| Key words: Map matching Candidate path Matching path Geometric features |
