宜昌市CORS运维与保密升级改造关键技术研究  

Research on Key Technologies of CORS Operation and Maintenance and Confidentiality Upgrading in Yichang

作　　者：卢立 孔建[2] Lu Li;Kong Jian(Yichang Land Survey and Planning Institute,Yichang 443000,China;School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China)

机构地区：[1]宜昌市土地勘测规划院,湖北宜昌443000 [2]武汉大学测绘学院,湖北武汉430079

出　　处：《城市勘测》2021年第4期74-78,共5页Urban Geotechnical Investigation & Surveying

摘　　要：连续运行(卫星定位服务)参考站是全球导航定位系统发展的阶段性成果,具有低成本、操作简便、定位精度高、覆盖率广等特点。宜昌市CORS系统已向多个政府部门和测绘单位提供服务,但系统信息缺乏管理,系统的保密级别低,该问题影响CORS系统安全与用户体验。针对上述问题,本文首先对宜昌市CORS系统运维与保密升级进行探讨;然后阐述升级对象与改造技术;最后对改造后的系统平台和定位精度进行测试。The continuous operation(satellite positioning service)reference station is a phased achievement of the development of the global navigation and positioning system,which has the characteristics of low cost,simple operation,high positioning accuracy,and wide coverage.The CORS system of Yichang City has provided services to many government departments and surveying and mapping units,but the system information lacks management and the system′s confidentiality level is low.This problem affects the CORS system security and user experience.In response to the above problems,this article first discusses the operation and maintenance and confidentiality upgrade of the CORS system in Yichang;then elaborates the upgrade objects and modification technologies;finally,the modified system platform and positioning accuracy are tested.

关 键 词：CORS 定位系统 坐标转换 差分改正 

分 类 号：P228[天文地球—大地测量学与测量工程]