Analysis of temporal application of BDS PPP around antarctica

doi:10.13474/j.cnki.11-2246.2026.0304

Abstract

Abstract: To address the practical application issues of China's BeiDou Satellite Navigation System(BDS) in the antarctic region.This paper utilizes precise point positioning (PPP) techniques to process BDS observational data from five tracking stations surrounding antarctica over a continuous five-year period,analyzing BDS PPP positioning performance and coordinate time series variations in the antarctic region.The experimental results indicate that the BDS satellite constellation status in the antarctic region is favorable,with dual-frequency PPP horizontal positioning accuracy better than 1 cm and elevation positioning accuracy better than 1.5 cm.After denoising,the trends in coordinate changes in the X,Y,and Z directions are noticeable.BDS dual-frequency precise point positioning technology can obtain high-precision continuous coordinate sequences for antarctic tracking stations.Based on the trends in coordinate changes in three directions,it is possible to infer variations in ice flow velocity and mass in the surrounding area,providing a new technological method for future studies on polar ice and snow changes.

Key words: around Antarctica, BDS, PPP, coordinate temporal sequence

CLC Number:

P228

TANG Jun, WU Duansong. Analysis of temporal application of BDS PPP around antarctica[J]. Bulletin of Surveying and Mapping, 2026, 0(3): 20-25,43.

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