我国东北地区BDS与GPS伪距单点定位精度对比分析  

Comparative analysis on point pseudo-range positioning accuracy of BDS and GPS in northeast China

作　　者：杨虎[1] 徐爱功[1] 秦小茜 祝会忠[1] 

机构地区：[1]辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000

出　　处：《导航定位学报》2017年第1期59-64,共6页Journal of Navigation and Positioning

基　　金："863"计划项目(2014AA123101);辽宁省高等学校创新团队项目(LT2015013)

摘　　要：为了进一步比较分析北斗卫星导航系统与GPS的定位精度,提出采用最小二乘算法分别对二者进行伪距单点定位解算。实验数据来源于卫星分布相对较弱的东北地区,利用广播星历与伪距观测值实现单系统BDS与GPS的伪距单点定位。结果表明,BDS与GPS单系统的三维定位精度基本相当,BDS相比GPS在E方向上的精度较高。In order to further comparat ively analyze the posit ioning accuracy of BDS and GPS, the paper proposed the least square method to process the pseudo-range point positioning data of GPS and BDS. The broadcast ephemeris and the pseudo-range observation were used to realize the point pseudo-range positioning of single-system BDS and GPS respectively with ex-perimental data from the northeast China where satell ite distribution is relatively weak. Result showed the accuracy in three-di-mension directions of BDS and GPS could be roughly equal, while the accuracy of BDS in the direction of Ewould behigher than that of GPS.

关 键 词：BDS GPS 伪距单点定位 精度分析 

分 类 号：P228[天文地球—大地测量学与测量工程]