GPS/BDS/Galileo相位平滑伪距单点定位性能分析
Journal of Navigation and Positioning（2018）
Abstract
为了提高GNSS测码伪距观测值的精度,对比分析GPS、BDS、Galileo系统的单点定位性能:给出双频载波相位平滑伪距的原理及其递推公式,并分析伪距平滑前后单点定位的收敛速度和定位精度.实验结果表明:经平滑后,单点定位的收敛速度加快;在N、E、U 3个方向中,N方向的收敛性能提升最为明显;伪距平滑能显著提高单点定位的精度.
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Key words
carrier-phase-smoothed pseudorange,GNSS,point positioning,convergence speed,positioning accuracy
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