| AVL系统中车位显示修正算法 |
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| 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. |
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| 作者姓名： | 聂洪山 徐捷 |
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| 作者单位： | 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OLEAutomation技术在VisualBasic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。
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| 关 键 词： | AVL系统 GIS 地图 偏差修正 |
| 收稿时间： | 1999/8/25 0:00:00 |
| 修稿时间： | 1999-08-25 |
Study on the Correcting Algorithm of Displaying Points of Vehicles in AVL Systems |
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| NIE Hongshan and 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. |
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| Authors: | NIE Hongshan and XU Jie |
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| Institution: | Institute of information Engineering, National Univ. of Defense Technology, Changsha 410073, China;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. |
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| Keywords: | AVL system GIS map wraps correcting |
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