| 引用本文: | 聂洪山,徐捷.AVL系统中车位显示修正算法.[J].国防科技大学学报,2000,22(3):109-113.[点击复制] |
| NIE Hongshan,XU Jie.Study on the Correcting Algorithm of Displaying Points of Vehicles in AVL Systems[J].Journal of National University of Defense Technology,2000,22(3):109-113[点击复制] |
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| AVL系统中车位显示修正算法 |
| 聂洪山, 徐捷 |
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(国防科技大学 信息工程研究所, 湖南长沙 410073)
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| 摘要: |
| AVL 系统就是GIS与GPS 技术集成的成功应用。AVL系统中GPS 信号在GIS 地图上显示时, 由于各种因素的影响, 存在很大的偏差, 对这种偏差的校正是十分必要的。提出了一种偏差校正方法——“ 线性抽象算法”, 并通过MapInfo 提供的OLE Automation 技术在Visual Basic 中实现了该算法, 实验结果表明这种方法具有较高的精度, 同时也指出了这种方法的不足。 |
| 关键词: AVL 系统 GIS 地图 偏差修正 |
| DOI： |
| 投稿日期：1999-08-25 |
| 基金项目: |
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| Study on the Correcting Algorithm of Displaying Points of Vehicles in AVL Systems |
| NIE Hongshan, XU Jie |
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(Institute of information Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| AVL system is a successful application of the integration of GIS and GPS.When GPS data is displayed on a GIS map, logically the vehicle point should be displayed on the roads. But because of the effect of errors, there are warps between the true vehicle point and the displayed point on the map. It is badly necessary to correct these warps. An algorithm named Linear Abstractin Algorithm ( LAA) was put forward. It was realized through Visual Basic and Maplnfo's OLE Automation technology. Experimental result shows that LAA has correspondingly perfect precision, and the shortcoming of the algorithm is also pointed out. |
| Keywords: AVL system GIS map wraps correcting |
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