摘要
为了提升普速铁路行车环境的实时可靠监测,保障铁路运输环境安全,阐述雷达检测及其应用,通过基于坐标的铁路轨迹线分析算法,处理获取的线路固定数据,生成轨迹线简易地图,用于辅助定位和感兴趣区域的提取,利用LKJ确定车载雷达当前位置,提取列车前方检测感兴趣区域,将实测的基于雷达目标点坐标信息转换到大地坐标系中,将目标点位置信息代入感兴趣区域中,判别确定铁路线路的障碍物。现场测试结果显示,该算法具有可行性且检测准确率较高。
To improve the real-time and reliable monitoring of the operating environment of the conventional railway and ensure the safety of railway transportation environment,this paper describes the radar detection and its application,and through the coordinate-based railway track analysis algorithm,processes the acquired fixed track data,generates a simple map of the Trajectory of the tracks,which is used for auxiliary positioning and extraction of the region of interest.The current position of the vehicle radar is located by LKJ,and the region of interest in front of the train can be extracted.Finally,the measured coordinate information based on the radar target point is transformed into the geodetic coordinate system.The target point position information is substituted into the region of interest to determine whether the goal is an obstacle.The field test results show that the algorithm is feasible,and the detection accuracy is high.
作者
沙世伟
SHA Shiwei(Communication and Signal Department,China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an 710043,Shaanxi,China)
出处
《铁道运输与经济》
北大核心
2020年第6期54-60,83,共8页
Railway Transport and Economy
基金
中铁第一勘察设计院集团有限公司科技研究开发课题(院科19-89)。
关键词
铁路
行车环境
轨迹线简易地图
车载雷达定位
感兴趣区域提取
障碍物检测
Railway
Operation Environment
Simple Map of the Trajectory
Vehicle Radar Positioning
Extraction of Region of Interest
Obstacle Detection
