一种高精度车载定位终端系统的设计及测试分析  

Design and Testing Analysis of A High Precision Vehicular Positioning Terminal System

作　　者：刘建[1,2] 郑洪江[1] 卢红洋 陈伟[1] 

机构地区：[1]武汉理工大学信息工程学院,武汉430070 [2]交通信息通信技术研究发展中心,北京100011

出　　处：《武汉理工大学学报（交通科学与工程版）》2015年第1期46-50,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家高技术研究发展计划(863)(批准号:2013AA122403);交通运输部西部建设科技项目(批准号:2012-344-X11-803)资助

摘　　要：现有车载定位终端因车辆移动的特殊性和常规定位精度不足的问题,无法实现车辆安全行驶所要求的高精度定位.文中设计了一种基于WAVE标准的高精度车载定位终端系统设计方案,以车载网和地基增强系统为基础实现高速移动车辆的高精度定位,给出了硬件设计结构和软件设计流程,并完整地进行了通信性能、动态定位精度、跑车轨迹的测试.结果表明,该设计不占有现有移动通信频谱资源,具备高效、可靠的实时定位特点,可实现车辆高精度定位,提高行车安全性.Existing vehicle terminals are unable to achieve high-precision positioning due to the particularity of vehicle movement and the lack of accuracy of conventional positioning methods.This paper designs a high-precision vehicular positioning terminal system design scheme based on WAVE standards,and gives the hardware structure and software design process.This system achieves high-precision positioning of high-speed mobile vehicles with the foundation of vehicular ad hoc networks and ground-based augmentation system.Finally,a complete testing is carried out,including communication performance,dynamic positioning accuracy,and vehicle movement trajectory.The results show that this scheme doesn＇t occupy the existing mobile spectrum resources and has highly efficient and reliable real-time positioning characteristics.Therefore,it can realize vehicle active high precision positioning and improve the security of driving.

关 键 词：WAVE标准 高精度定位 车载通信 终端系统设计 测试分析 

分 类 号：U491.6[交通运输工程—交通运输规划与管理]