Volume 36 Issue 6
Jun.  2011
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YAN Wei, YUAN Yunbin, OU Jikun, LI Dehai. Feasibility of Precise Timing with Uncombined PPP[J]. Geomatics and Information Science of Wuhan University, 2011, 36(6): 648-651.
Citation: YAN Wei, YUAN Yunbin, OU Jikun, LI Dehai. Feasibility of Precise Timing with Uncombined PPP[J]. Geomatics and Information Science of Wuhan University, 2011, 36(6): 648-651.
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Feasibility of Precise Timing with Uncombined PPP

  • 1 Key Laboratory of Dynamic Geodesy,Institute of Geodesy and Geophysics,CAS,340 Xudong Street,Wuhan 430077,China;2 Graduate University of CAS,A19 Yuquan Road,Beijing 100039,China

Funds: 国家杰出青年基金资助项目(40625013)；国家自然科学基金资助项目(40890160)；中国科学院知识创新工程领域前沿资助项目(0909141014);中国科学院研究生科技创新与社会实践专项基金资助项目
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  • Received Date: April 10, 2011
  • Published Date: June 04, 2011
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    • Abstract
  • The theory and mathematical model of uncombined precise point positioning were proposed.And several effective data processing strategies were proposed to improve PPP receiver clock solution by avoid absorbing some un-modeled system errors.Full-featured PPP software was developed base on the GPSTk core library.Experiments with data from IGS stations distributed all over the world were carried out to evaluate the performance of GPS timing with uncombined PPP algorithm.The results support that PPP algorithm can achieve sub-nanosecond(0.3 ns) level receiver clock solution,and the uncombined PPP algorithm has better accuracy than the classic PPP algorithm with all things being equal.
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