Results 21 to 30 of about 2,117 (181)

A Novel Method to Estimate Multi-GNSS Differential Code Bias without Using Ionospheric Function Model and Global Ionosphere Map

open access: yesRemote Sensing, 2022
Global navigation satellite system (GNSS) differential code bias (DCB) is one of main errors in ionospheric modeling and applications. Accurate estimation of multiple types of GNSS DCBs is important for GNSS positioning, navigation, and timing, as well ...
Qisheng Wang, Shuanggen Jin, Xianfeng Ye
doaj   +1 more source

Revisit the calibration errors on experimental slant total electron content (TEC) determined with GPS [PDF]

open access: yes, 2018
This is a pre-print of an article published in GPS Solutions. The final authenticated version is available online at: https://doi.org/10.1007/s10291-018-0753-7.
Chen, Wu   +7 more
core   +2 more sources

Estimation and Analysis of BDS2 and BDS3 Differential Code Biases and Global Ionospheric Maps Using BDS Observations

open access: yesRemote Sensing, 2021
Following the continuous and stable regional service of BDS2, the BDS3 officially announced its global service in July 2020. To fully take advantage of the new multi-frequency BDS3 signals in ionosphere sensing and positioning, it is essential to ...
Min Li, Yunbin Yuan
doaj   +1 more source

Estimation and analysis of multi-GNSS differential code biases using a hardware signal simulator [PDF]

open access: yes, 2018
In ionospheric modeling, the differential code biases (DCBs) are a non-negligible error source, which are routinely estimated by the different analysis centers of the International GNSS Service (IGS) as a by-product of their global ionospheric analysis ...
A Hauschild   +26 more
core   +2 more sources

BDS and Galileo: Global Ionosphere Modeling and the Comparison to GPS and GLONASS

open access: yesRemote Sensing, 2022
The ionospheric delay is one of the important error sources in the Global Navigation Satellite System (GNSS) data processing. With the rapid construction and development of GNSS, the abundant satellite resources have brought new opportunities for ...
Yafeng Wang   +7 more
doaj   +1 more source

GPS differential code biases determination: methodology and analysis [PDF]

open access: yes, 2017
The final publication is available at Springer via http://dx.doi.org/10.1007/s10291-017-0634-5We address two main problems related to the receiver and satellite differential code biases (DCBs) determination.
González Casado, Guillermo   +3 more
core   +2 more sources

Epoch-Wise Estimation and Analysis of GNSS Receiver DCB under High and Low Solar Activity Conditions

open access: yesRemote Sensing, 2023
Differential code bias (DCB) is one of the main errors involved in ionospheric total electron content (TEC) retrieval using a global navigation satellite system (GNSS). It is typically assumed to be constant over time.
Xiao Zhang   +3 more
doaj   +1 more source

Influence of ionospheric perturbations in GPS time and frequency transfer [PDF]

open access: yes, 2009
The stability of GPS time and frequency transfer is limited by the fact that GPS signals travel through the ionosphere. In high precision geodetic time transfer (i.e. based on precise modeling of code and carrier phase GPS data), the so-called ionosphere-
Bassiri   +14 more
core   +1 more source

Validation and application of optimal ionospheric shell height model for single-site estimation of total electron content [PDF]

open access: yesAnnales Geophysicae, 2019
We recently proposed a method to establish an optimal ionospheric shell height model based on the international GNSS service (IGS) station data and the differential code bias (DCB) provided by the Center for Orbit Determination in Europe (CODE) during ...
J. Zhao, C. Zhou
doaj   +1 more source

Analysis of the BDGIM Performance in BDS Single Point Positioning

open access: yesRemote Sensing, 2021
The broadcast ionospheric model is mainly used to correct the ionospheric delay error for single-frequency users. Since the BeiDou global ionospheric delay correction model (BDGIM) is a novel broadcast ionospheric model for BDS-3, its performance was ...
Guangxing Wang   +5 more
doaj   +1 more source

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