载波和多普勒平滑伪距算法在智能手机单点定位中的应用

Carrier Phase and Doppler Smoothing Pseudorange Algorithm for Standard Point Positioning in Smartphones

针对智能手机原始观测数据中伪距观测值精度不足的问题,采用载波/多普勒平滑伪距方法改善原始伪距精度,重点阐述了华为Mate30智能手机伪距定位的性能以及平滑算法在手机上提升精度的效果,通过更加良好可靠的载波信息与多普勒值平滑来提升伪距定位精度,结果表明:两种方法相较原始单点定位均有一定提升,其中载波相位平滑结果优于多普勒平滑。

As the poor accuracy of pseudorange observation in smartphone raw observation data.Carrier phase and Doppler smoothing pseudorange algorithm was selected to improve the raw pseudorange accuracy.The performance of Huawei Mate30 smartphone pseudorange positioning and the effect of smoothing algorithm are highlighted,and the pseudorange positioning accuracy is improved by better and more reliable carrier phase and Doppler information.The results show that both methods have some improvement over the original standard point positioning,and the carrier phase smoothing results are better than Doppler smoothing.