摘要
精密单点定位(PPP)技术可利用单台接收机在全球范围内直接得到高精度的坐标信息。目前,北斗卫星导航系统(BDS)已经具备了亚太大部分地区的区域服务能力,其精密定位技术已成为国内外GNSS领域的研究热点。将北斗应用于CORS系统,可解决现有区域基准单一GPSCORS模式带来的安全问题。以甘肃省CORS站为例,利用PPP技术对北斗CORS定位精度进行了测试,与GPS相比,其差值在0.07 m以内。
Precise point positioning(PPP) can obtain the high precise coordinate information by using single receiver in global any place.At present,BeiDou navigation satellite system(BDS) already has service capacity in Asian Pacific Region.BDS PPP technology has been focused by the GNSS aspect.The safe question was considered based on GPS and other navigation satellite system.Taking the CORS in Gansu Province for example,the accuracy of BeiDou CORS was tested according to PPP.The results' deviations were optimized in 0.07 m compared with GPS CORS.
出处
《地理空间信息》
2016年第5期58-59,7,共2页
Geospatial Information
基金
军地2013~2015年基金资助项目(参[2013]186号)
