摘要
该文介绍了一个新型的基于GPS和DR的公路数据采集GIS系统 ,它以GPS动态差分定位为主 ,辅以陀螺仪和里程计的航位推测法 ,可以高效准确地采集到现有公路的空间和属性数据信息。系统采用了GIS技术以增加地图和GIS功能 ,同时采用ArcSDE构建路况数据库。对路况数据信息的分析评价 ,将指导公路的养护管理和未来规划。实际应用表明 ,采用GPS和DR组合定位后的该GIS系统有效地克服了GPS定位的局限性 。
Abstract:This paper introduces a new GIS system for road data collection based on GPS and DR technology. The system mainly adopts the method of dual station dynamic differential positioning assisted by dead reckoning used in the combination of gyro and milemeter, so that it can acquire geographic spatial data of roads efficiently and accurately. This system adopts GIS technology to provide the function of map and GIS,and builds road database on ArcSDE. The analysis of road data will guide the maintenance and construction of roads effectively. The actual application shows that this system overcomes the constraint of GPS positioning and can collect continuous and precise road data.
出处
《计算机仿真》
CSCD
2005年第2期210-214,共5页
Computer Simulation
