Data processing for GPS precise point positioning

Cong Wei Hu; Wu Chen; Shan Gao; Yong Qi Chen; Xiaoli Ding

Data processing for GPS precise point positioning

Cong Wei Hu, Wu Chen, Shan Gao, Yong Qi Chen, Xiaoli Ding

Research output: Journal article publication › Journal article › Academic research › peer-review

Abstract

In the data processing of the precise point positioning (PPP), the un-difference method is commonly used. However, GPS measurements can be differenced with satellites or different observation epochs. In theory, these differencing approaches should be mathematically equivalent. The positioning performance of different PPP data models, including un-difference (UD), satellite difference (SD), time difference (TD) and time-satellite difference (TSD), is examined using the 24 h GPS observation. The positioning accuracy, convergence of ambiguity, and tropospheric delay estimation with these four models are compared with each other.

Original language	English
Pages (from-to)	124-131
Number of pages	8
Journal	Transactions of Nanjing University of Aeronautics and Astronautics
Volume	22
Issue number	2
Publication status	Published - 1 Jun 2005

Keywords

Error model
GPS
Precise point positioning

ASJC Scopus subject areas

Aerospace Engineering

More information

http://hdl.handle.net/10397/7197

Cite this

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AB - In the data processing of the precise point positioning (PPP), the un-difference method is commonly used. However, GPS measurements can be differenced with satellites or different observation epochs. In theory, these differencing approaches should be mathematically equivalent. The positioning performance of different PPP data models, including un-difference (UD), satellite difference (SD), time difference (TD) and time-satellite difference (TSD), is examined using the 24 h GPS observation. The positioning accuracy, convergence of ambiguity, and tropospheric delay estimation with these four models are compared with each other.

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KW - Precise point positioning

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M3 - Journal article

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ER -

Data processing for GPS precise point positioning

Abstract

Keywords

ASJC Scopus subject areas

More information

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