Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Science of Surveying and Mapping》 2019-01
Add to Favorite Get Latest Update

The model and accuracy analysis of combined RTK by GPS,GLONASS and BDS

LIU Jinhai;TU Rui;ZHANG Pengfei;ZHANG Rui;LU Xiaochun;National Time Service Center,Chinese Academy of Sciences;University of Chinese Academy of Sciences;Key Laboratory of Precision Navigation and Timing Technology,Chinese Academy of Science;  
In order to improve the positioning accuracy and reliability of RTK technology under poor observation conditions,this paper studited the combined RTK model of GPS/GLONASS/BDS,and presented the model of combination of the observation domain and the normal equation domain.The specific implementation process is:the model of combination of the observation domain which directly superimposed the double-difference observation of the multisystem to obtain the position parameters and ambiguities of the combined system;and the model of combination of the normal equation domain which firstly solved the double-difference observation of single system to get the normal equation and then superimposed the normal equation of multi-system to obtain the position parameters and ambiguities of the combined system.The experimental results showed that the model of combination of the observation domain is more rigorous than the combination of the normal equation domain,and the positioning result is more stable;the multi-GNSS combined RTK has better accuracy and stability than the single-system RTK.
【Fund】: 国家重点研发计划项目(2016YFB0501804);; 国家自然科学基金项目(41504006 41674034);; 中国科学院百人计划和前沿科技重点研发计划项目(QYZDB-SSW-DQC028)
【CateGory Index】: P228.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved