ISB/IFB Estimation and Characteristic Analysis with Multi-GNSS Precise Orbit Determination

DANG Yamin; ZHANG Longping; CHEN Junyong

doi:10.13203/j.whugis20180279

Volume 43 Issue 12

Dec. 2018

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Geomatics and Information Science of Wuhan University > 2018 > 43(12): 2079-2084, 2138. > DOI: 10.13203/j.whugis20180279

DANG Yamin, ZHANG Longping, CHEN Junyong. ISB/IFB Estimation and Characteristic Analysis with Multi-GNSS Precise Orbit Determination[J]. Geomatics and Information Science of Wuhan University, 2018, 43(12): 2079-2084, 2138. DOI: 10.13203/j.whugis20180279

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ISB/IFB Estimation and Characteristic Analysis with Multi-GNSS Precise Orbit Determination

1.
Chinese Academy of Surveying and Mapping, Beijing 100830, China

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The National Natural Science Foundation of China 41474011

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Author Bio:
DANG Yamin, PhD, professor, specializes in GNSS data processing, regional crustal deformation analysis and modeling by space geodetic techniques, tectonic plate motion and geodynamics, geodetic datum and reference frames. E-mail: dangym@casm.ac.cn
Corresponding author:
ZHANG Longping, PhD. E-mail: lpzh1988@163.com
Received Date: July 14, 2018
Published Date: December 04, 2018

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Abstract

Abstract

The effects of inter system bias (ISB) and inter frequency bias (IFB) need to be taken into account in the multi-GNSS precise orbit determination. In this paper, the ISB/IFB estimation model in the context of the multi-GNSS orbit determination is derived. A constraint method for reduce the rank defect about ISB/IFB is presented based on the GPS datum. Experimental results from MGEX data indicate that ISBs/IFBs of the different system are of good stability, and have high consistency for satellite time series in each system. The standard deviation of the BDS ISB, Galileo ISB, GLONASS IFB are 0.36 ns, 0.18 ns, 0.51 ns, respectively. The ISBs from different monitoring stations are relatively closed to those stations with the same type receiver, but ns-level differences can be still achieved. The GLONASS IFBs are consistent with the same channel number satellites of the same monitoring station and different monitoring stations.
- GNSS,
- datum unification,
- precise orbit determination,
- ISB,
- IFB

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ISB/IFB Estimation and Characteristic Analysis with Multi-GNSS Precise Orbit Determination

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