北斗沿海差分导航与精密定位服务系统

BeiDou Coastal Differential Navigation and Precise Positioning Service System

为了保障我国自主的沿海导航与精密定位服务,研究了基于北斗系统的沿海高精度导航定位服务系统,介绍了该系统的设计方案和关键设备。并针对用户对北斗米级导航和厘米级定位的需求,分别采用了BDS+GPS联合伪距差分、北斗三频网络RTK的数据处理理论和方法。采用自主研发的系统软、硬件设备,对北斗沿海差分导航与精密定位服务性能进行了测试。结果表明,该系统在定位精度和适用范围等方面整体优于原有的RBNDGPS系统,且实现了北斗在海上的米级导航和厘米级定位服务。

In order to guarantee China' s own coastal navigation and precise positioning service,the Bei Dou coastal precise positioning service system was studied in this paper. The design scheme and key equipment of the system was also introduced. Then,the algorithms of combined BDS and GPS pseudorange differential positioning and BDS triple-frequency network RTK were adopted in this paper. Equipped with the independently developed software and hardware,a test on Bei Dou coastal differential navigation and precise positioning service system was conducted. The results showed that the designed system was better performed than the original RBN-DGPS system in both the positioning accuracy and the scope of application. The m-level navigation and cm-level positioning services could be realized using BDS at sea.