大地测量与地球动力学2024，Vol.44Issue(8)：804-809,6.DOI:10.14075/j.jgg.2023.11.139
一种顾及时空变化的BDS PPP多路径误差建模方法
A BDS PPP Multipath Model Considering Spatio-Temporal Variation Characteristic
摘要
Abstract
Based on the satellite orbit characteristics of BDS GEO,IGSO,and MEO,we use multi-point hemispherical grid model(MHGM)and sidereal filtering(SF)method to establish a multipath error correction model for a mixed constellation of BDS.After applying the model to correct multipath errors,the post-fit carrier phase residuals for BDS precise point positioning(PPP)are significantly re-duced,and the positioning accuracy in E,N,and U directions is improved by 41％,37％,and 38％,respectively,with an overall increase in convergence speed of 31％.关键词
BDS/多路径误差/精密单点定位/多路径误差半天球格网模型/恒星日滤波Key words
BDS/multipath error/precise point positioning/multi-point hemispherical grid model/sidereal filtering分类
天文与地球科学引用本文复制引用
罗浩,范永昭,叶世榕,夏凤雨,李昭,沙智敏,江俊飞..一种顾及时空变化的BDS PPP多路径误差建模方法[J].大地测量与地球动力学,2024,44(8):804-809,6.基金项目
国家自然科学基金(41974031) （41974031）
中交公规院科技创新专项(C22030A) （C22030A）
福建省高新技术与工业科技引导性资助项目(2022H0030). National Natural Science Foundation of China,No.41974031 （2022H0030）
Science and Technology Innovation Project of HPDI,No.C22030A （）
High Technology and Industrial Technology Guiding Project of Fujian Province,No.2022H0030. （）
