海洋测绘2024，Vol.44Issue(3)：68-72,82,6.DOI:10.3969/j.issn.1671-3044.2024.03.014
北斗低成本接收机单频PPP海上定位性能分析
Analysis of single-frequency PPP seaborne positioning performance for BDS low-cost receivers
摘要
Abstract
To evaluate the performance of the low-cost BDS receiver on positioning within the marine environment,this paper first derives a single-frequency precise point positioning(SF-PPP)model combining BDS-2 and BDS-3 from the raw observation equations.Then,through the comparison of the posterior residuals,analyzing the data quality of the dynamic GNSS observations above the sea level for low-cost and geodetic receivers,respectively.Finally,the real-time and post-processing precision products are applied to evaluate the positioning accuracy of the SF-PPP model using a low-cost receiver.The experimental results show that the noise of the carrier-phase and pseudorange observations for a low-cost receiver is more than 11 and 5 times that of the geodetic receiver,whose data quality is significantly poor.The real-time SF-PPP method for the low-cost receiver is less than 0.3 m for the horizontal positioning,0.5 m for the vertical positioning,and 40 min for the convergence time.The accuracy of the post-processing horizontal and vertical positioning up to 0.219 and 0.430 m within 95%confidence intervals,respectively.Therefore,the SF-PPP method using the low-cost receiver can be used to measure the submeter-level positioning,which is available for accurate positioning applications on sea level.关键词
北斗卫星导航系统/单频精密单点定位/低成本接收机/数据质量/定位性能Key words
BeiDou navigation satellite system(BDS)/Single-frequency precise point positioning(SF-PPP)/low-cost/positioning performance evaluation/data quality analysis分类
天文与地球科学引用本文复制引用
刘一,刘敏,边少锋,翟国君,周威..北斗低成本接收机单频PPP海上定位性能分析[J].海洋测绘,2024,44(3):68-72,82,6.基金项目
国家自然科学基金(41971416 （）
41974005 （）
42174051) （）
海军工程大学研究生创新基金(DQCXJJ2021004 （）
DQCXJJ2021005) （）
海军工程大学自主立项项目(2019055). （2019055）
