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.
作者
卢立
孔建
Lu Li;Kong Jian(Yichang Land Survey and Planning Institute,Yichang 443000,China;School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China)
出处
《城市勘测》
2021年第4期74-78,共5页
Urban Geotechnical Investigation & Surveying
关键词
CORS
定位系统
坐标转换
差分改正
CORS
positioning system
coordinate conversion
difference correction
