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research-article

Multi-GNSS fractional cycle bias products generation for GNSS ambiguity-fixed PPP at Wuhan University

Authors:

Xiaohong Zhang,

Lin PanAuthors Info & Claims

GPS Solutions, Volume 24, Issue 1

https://doi.org/10.1007/s10291-019-0929-9

Published: 20 November 2019 Publication History

Abstract

The School of Geodesy and Geomatics (SGG) at Wuhan University has been generating GPS fractional cycle bias (FCB) products for users to realize ambiguity-fixed precise point positioning (PPP) since 2015. Along with the development of multiple Global Navigation Satellite Systems (GNSS), there is an urgent need to provide multi-GNSS FCB products for the PPP ambiguity resolution (AR) with multi-constellation observations. This study focuses on the multi-GNSS FCB estimation, in which the FCB products of GPS, Galileo, BDS and QZSS are generated. We describe here the detailed estimation method and the significant improvements to the new service. The FCB quality, as well as the PPP AR performance, is evaluated. The mean standard deviations of wide-lane FCBs relative to CODE are 0.019, 0.005, 0.015 and 0.008 cycles, while those of narrow-lane are 0.021, 0.021, 0.057 and 0.010 cycles for GPS, Galileo, BDS and QZSS, respectively. The comparison with CNES GPS and Galileo FCBs indicates their good consistency with the corresponding FCBs. Compared with GPS-only PPP AR, the convergence time and time to first fix of the four-system PPP AR can be reduced by 27.3 and 29.4% in the static mode, respectively, while the corresponding improvements are 42.6 and 51.9% in the kinematic mode, respectively. These results demonstrate that our SGG FCB service can provide high-precision and reliable four-system FCB corrections for worldwide users to conduct ambiguity-fixed PPP processing.

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Cited By

Shu BLei TLi PWang LHuang GZhang SZhang Q(2025)Calibration of inconsistent receiver-dependent pseudorange bias and its impact on wide-lane ambiguity fixingGPS Solutions10.1007/s10291-025-01825-929:2Online publication date: 1-Apr-2025
https://dl.acm.org/doi/10.1007/s10291-025-01825-9
Hou PZhang BYasyukevich Y(2024)Homogeneous PPP–RTK user positioning performance as a consequence of network integer ambiguity resolutionGPS Solutions10.1007/s10291-023-01600-828:2Online publication date: 12-Jan-2024
https://dl.acm.org/doi/10.1007/s10291-023-01600-8
Ma FZhang XHu JLi PPan LYu SZhang Z(2022)Frequency design of LEO-based navigation augmentation signals for dual-band ionospheric-free ambiguity resolutionGPS Solutions10.1007/s10291-022-01240-426:2Online publication date: 1-Mar-2022
https://dl.acm.org/doi/10.1007/s10291-022-01240-4
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Information & Contributors

Information

Published In

cover image GPS Solutions

GPS Solutions Volume 24, Issue 1

Jan 2020

417 pages

ISSN:1080-5370

Issue’s Table of Contents

© Springer-Verlag GmbH Germany, part of Springer Nature 2019.

Publisher

Springer-Verlag

Berlin, Heidelberg

Publication History

Published: 20 November 2019

Accepted: 29 October 2019

Received: 08 October 2019

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China National Funds for Distinguished Young Scientists (CN)

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Cited By

Shu BLei TLi PWang LHuang GZhang SZhang Q(2025)Calibration of inconsistent receiver-dependent pseudorange bias and its impact on wide-lane ambiguity fixingGPS Solutions10.1007/s10291-025-01825-929:2Online publication date: 1-Apr-2025
https://dl.acm.org/doi/10.1007/s10291-025-01825-9
Hou PZhang BYasyukevich Y(2024)Homogeneous PPP–RTK user positioning performance as a consequence of network integer ambiguity resolutionGPS Solutions10.1007/s10291-023-01600-828:2Online publication date: 12-Jan-2024
https://dl.acm.org/doi/10.1007/s10291-023-01600-8
Ma FZhang XHu JLi PPan LYu SZhang Z(2022)Frequency design of LEO-based navigation augmentation signals for dual-band ionospheric-free ambiguity resolutionGPS Solutions10.1007/s10291-022-01240-426:2Online publication date: 1-Mar-2022
https://dl.acm.org/doi/10.1007/s10291-022-01240-4
Glaner MWeber R(2021)PPP with integer ambiguity resolution for GPS and Galileo using satellite products from different analysis centersGPS Solutions10.1007/s10291-021-01140-z25:3Online publication date: 13-May-2021
https://dl.acm.org/doi/10.1007/s10291-021-01140-z
Li XHan XLi XLiu GFeng GWang BZheng H(2021)GREAT-UPD: An open-source software for uncalibrated phase delay estimation based on multi-GNSS and multi-frequency observationsGPS Solutions10.1007/s10291-020-01070-225:2Online publication date: 23-Feb-2021
https://dl.acm.org/doi/10.1007/s10291-020-01070-2
Zhang XLu X(2021)Recursive estimation of the stochastic model based on the Kalman filter formulationGPS Solutions10.1007/s10291-020-01060-425:1Online publication date: 2-Jan-2021
https://dl.acm.org/doi/10.1007/s10291-020-01060-4

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