Comprehensive assessment of real-time precise products from IGS analysis centers

作     者：Bofeng Li Haibo Ge Yuhang Bu Yanning Zheng Leitong Yuan 

作者机构：College of Surveying and GeoInformaticsTongji UniversityShanghai 200092China 

出 版 物：《Satellite Navigation》 (卫星导航（英文）)

年 卷 期：2022年第3卷第1期

页      面：97-113,I0004页

核心收录：

学科分类：081802[工学-地球探测与信息技术] 08[工学] 081105[工学-导航、制导与控制] 0818[工学-地质资源与地质工程] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

基　　金：supported by the National Natural Science Funds of China(41874030,42074026,42104013) Natural Science Fund of Shanghai(21ZR1465600) the Program of Shanghai Academic Research Leader(20XD1423800) the Innovation Program of Shanghai Municipal Education Commission(2021-01-07-00-07-E00095) the“Shuguang Program”supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission(20SG18) the Scientifc and Technological Innovation Plan from Shanghai Science and Technology Committee(20511103302,20511103402 and 20511103702) 

主　　题：Real-time precise point positioning(RT-PPP) State space representation(SSR) Multi-GNSS Convergence time 

摘      要：Real-Time Precise Point Positioning(RT-PPP)has been one of the research hotspots in GNSS(Global Navigation Satellite System)community for ***-time precise products of satellite orbits and clocks are the prerequisite for ***,it is of great importance to investigate the current multi-GNSS real-time precise products in State Space Representation(SSR)from diferent analysis *** this article,SSR products from 10 analysis centers are comprehensively evaluated by comparing them with the fnal products and performing the kinematic *** results show that analysis centers CNES(Centre National D’Etudes Spatiales)and WHU(GNSS Research Center of Wuhan University)provide the most complete products with the best *** the accuracy of real-time products for the GNSSs,the accuracies of orbit and clock products are better than 5 cm and 0.15 ns,respectively,for Global Positioning System(GPS),followed by Galileo navigation satellite system(Galileo),BeiDou-3 Navigation Satellite System(BDS-3),GLObal NAvigation Satellite System(GLONASS),and BeiDou-2 Navigation Satellite System(BDS-2).Meanwhile,the results of the RT-PPP with quad-system show that the positioning accuracies are 1.76,1.12 and 2.68 cm in east,north,and up directions,respectively,and the convergence time to 0.1,0.1,0.2 m for corresponding directions is 15.35 min.