BDS-2三频伪距单点定位精度分析

Accuracy analysis of BDS-2 tri-frequency pseudorange single-point positioning

当前对于BDS-2三频组合定位性能的研究较少,文中基于三频非组合模型对BDS-2三频组合伪距单点定位精度进行了分析。经研究发现,三频组合伪距单点定位精度较单频定位精度有明显提升,对B1、B2、B3频率定位精度的提升关系为:B2>B3>B1,可为今后BDS-2三频组合定位性能的研究提供一定参考意义。

Currently,there were few researches on the BDS-2 tri-frequency combination positioning performance,in this paper,the single-point positioning accuracy of the BDS-2 tri-frequency combination pseudorange was analyzed based on the tri-frequency non-combination model.Research found that the single-point positioning accuracy of the tri-frequency combination pseudorange was improved significantly comparing with the single-frequency positioning accuracy.Relationship between the improvement of the positioning accuracy of the B1,B2,and B3 frequency was:B2>B3>B1,which could provide the certain reference significance for the research of the BDS-2 tri-frequency combination positioning performance.