Results 11 to 20 of about 2,117 (181)

Investigation and Validation of the Time-Varying Characteristic for the GPS Differential Code Bias

open access: yesRemote Sensing, 2019
The time-varying characteristic of the bias in the GPS code observation is investigated using triple-frequency observations. The method for estimating the combined code bias is presented and the twelve-month (1 January⁻31 December 2016) triple ...
Haojun Li, Jingxin Xiao, Weidong Zhu
doaj   +3 more sources

GPS Receiver and Satellite DCB Estimation using Ionospheric TEC [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
We estimated the receiver and satellite differential code bias (DCB) based on the ionospheric total electron content (TEC) estimation method. The GPS network which has been operated by the Korea Astronomy and Space Science Institute (KASI) was designed ...
Byung-Kyu Choi   +2 more
doaj   +1 more source

Determination of NavIC differential code biases using GPS and NavIC observations

open access: yesGeodesy and Geodynamics, 2020
Delay bias between the pseudo range code is called Differential Code Bias (DCB), this is one of the main error sources to estimate the precise Total Electron Content (TEC) in ionosphere.
K. Siva Krishna, D. Venkata Ratnam
doaj   +1 more source

An Analysis of Satellite Multichannel Differential Code Bias for BeiDou SPP and PPP

open access: yesRemote Sensing, 2023
Differential code bias (DCB) of satellite is an error that cannot be ignored in precise positioning, timing, ionospheric modeling, satellite clock correction, and ambiguity resolution. The completion of the third generation of BeiDou Navigation Satellite
Guangxing Wang   +4 more
doaj   +1 more source

Assessment of BeiDou differential code bias variations from multi-GNSS network observations [PDF]

open access: yesAnnales Geophysicae, 2016
The differential code bias (DCB) of global navigation satellite systems (GNSSs) affects precise ionospheric modeling and applications. In this paper, daily DCBs of the BeiDou Navigation Satellite System (BDS) are estimated and investigated from 2-year
S. G. Jin   +4 more
doaj   +1 more source

BDS-3 Triple-Frequency Timing Group Delay/Differential Code Bias and Its Effect on Positioning

open access: yesRemote Sensing, 2023
BeiDou Global Navigation Satellite System (BDS-3) broadcasts multifrequency signals that offer more choices of frequencies and more signal combinations for positioning. This paper analyzes the effect of timing group delay (TGD) and differential code bias
Yanjun Du   +5 more
doaj   +1 more source

Receiver DCB Estimation and Analysis by Types of GPS Receiver [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
This paper analyzes that the global positioning system (GPS) receiver differential code bias (DCB) has effect on the estimation the ionosphere total electron content (TEC). The data from nine permanent GPS sites of the Korea Astronomy and Space Science
Byung-Kyu Choi   +2 more
doaj   +1 more source

The Effect of BDS-3 Time Group Delay and Differential Code Bias Corrections on Positioning

open access: yesApplied Sciences, 2020
The timing group delay parameter (TGD) or differential code bias parameter (DCB) is an important factor that affects the performance of GNSS basic services; therefore, TGD and DCB must be taken seriously.
Peipei Dai   +6 more
doaj   +1 more source

Comment on Choi et al. Correlation between Ionospheric TEC and the DCB Stability of GNSS Receivers from 2014 to 2016. Remote Sens. 2019, 11, 2657

open access: yesRemote Sensing, 2020
Choi et al. (2019) analyzed the correlation between the ionospheric total electron content (TEC) and the Global Navigation Satellite System (GNSS) receiver differential code bias (DCB) and concluded that the long-term variations of the receiver DCB are ...
Jiahao Zhong, Jiuhou Lei, Xinan Yue
doaj   +1 more source

Nonlinear power spectrum in the presence of massive neutrinos: perturbation theory approach, galaxy bias and parameter forecasts [PDF]

open access: yes, 2009
Future or ongoing galaxy redshift surveys can put stringent constraints on neutrinos masses via the high-precision measurements of galaxy power spectrum, when combined with cosmic microwave background (CMB) information.
Saito, Shun   +2 more
core   +3 more sources

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