Modeling BeiDou IGSO and MEO Satellites Code Pseudorange Variations

ZOU Xuan; LI Zongnan; CHEN Liang; LI Min; TANG Weiming; SHI Chuang

doi:10.13203/j.whugis20160275

Volume 43 Issue 11

Nov. 2018

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Geomatics and Information Science of Wuhan University > 2018 > 43(11): 1661-1666. > DOI: 10.13203/j.whugis20160275

ZOU Xuan, LI Zongnan, CHEN Liang, LI Min, TANG Weiming, SHI Chuang. Modeling BeiDou IGSO and MEO Satellites Code Pseudorange Variations[J]. Geomatics and Information Science of Wuhan University, 2018, 43(11): 1661-1666. DOI: 10.13203/j.whugis20160275

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Modeling BeiDou IGSO and MEO Satellites Code Pseudorange Variations

1.
GNSS Research Center, Wuhan University, Wuhan 430079, China

Funds:

The National Key Research and Development Program of China 2018YFB0505201

The National Key Research and Development Program of China 2017YFB0503702

the Open Fund of Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes SXSN/4008

the Open Fund of State Key Laboratory of Hydraulics and Mountain River Engineering SKHL1723

the Fundamental Research Funds for the Central Universities 2042018gf0001

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Author Bio:
ZOU Xuan, PhD, specializes in undifferenced network RTK and high accuracy data processing. E-mail: supermanzx1982@sina.com
Received Date: February 19, 2017
Published Date: November 04, 2018

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Abstract

Abstract

Variations of code pseudorange observations of BeiDou satellites in inclined geosynchronous orbit (IGSO) and medium earth orbit (MEO), lead to systematic deviation in code-phase combination observations. The one-step method based on single-difference between epochs, is proposed to modify the above errors, and the corresponding correction model has also been given. It is shown that, comparing with the existing modeling proposed by Wanninger et al, the final optimized models in this paper using one-step method can improve the stability of Melbourne-Wübbena (MW) observables of all IGSO/MEO satellites with the proportion of 23.88% on average. It is worthy to mention that C08 satellite performs the most remarkable improvement with the proportion up to 32.26%.
- BDS,
- IGSO/MEO,
- code pseudorange variations,
- epoch difference,
- modeling for each sa-tellite

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