利用北斗卫星导航系统进行导航定位具有全天候、高精度、不受其他定位系统限制等优点。为验证目前系统定位精度,采用单频伪距绝对定位的方式,对系统试运行阶段和正式提供区域服务后两天的观测数据进行处理和分析。结果表明:北斗系统单频伪距绝对定位能够达到米级精度,可以满足基础测绘和日常生产的需要。
Navigation and positioning using BeiDou navigation satellite system is all- weather, high-precision and independent. To verify the current system positioning accuracy, processed and analyzed observation data during period of the system providing test run serv- ices and providing the Full Operational Capability(FOC)services for China and surrounding area. The results showed that by using single-frequency pseudorange absolute positioning, the system could reach meter level precision, and meet the needs of basic surveying and map- ping.