GPS satellite differential code bias estimation with current eleven low earth orbit satellites

2021 ◽  
Vol 95 (7) ◽  
Author(s):  
Xingxing Li ◽  
Wei Zhang ◽  
Keke Zhang ◽  
Qian Zhang ◽  
Xin Li ◽  
...  
Keyword(s):  
Low Earth Orbit ◽  
Earth Orbit ◽  
Bias Estimation ◽  
Differential Code Bias ◽  
Low Earth Orbit Satellites ◽  
Code Bias

Differential Code Bias of GPS Receivers in Low Earth Orbit: An Assessment for CHAMP and SAC-C

2005 ◽  
pp. 465-470 ◽  
Author(s):  
Stefan Heise ◽  
Claudia Stolle ◽  
Stefan Schlüter ◽  
Norbert Jakowski
Keyword(s):  
Low Earth Orbit ◽  
Earth Orbit ◽  
Gps Receivers ◽  
Differential Code Bias ◽  
Code Bias

Dispersed and disparate sensor management for tracking low earth orbit satellites

2009 ◽  
Author(s):  
A. Zatezalo ◽  
A. El-Fallah ◽  
R. Mahler ◽  
R. K. Mehra ◽  
J. Brown
Keyword(s):  
Low Earth Orbit ◽  
Earth Orbit ◽  
Sensor Management ◽  
Low Earth Orbit Satellites

scholarly journals Assessment of BeiDou differential code bias variations from multi-GNSS network observations

2016 ◽  
Vol 34 (2) ◽  
pp. 259-269 ◽  
Author(s):  
S. G. Jin ◽  
R. Jin ◽  
D. Li
Keyword(s):  
Orbital Plane ◽  
Satellite Orbit ◽  
Satellite System ◽  
Global Navigation Satellite Systems ◽  
Dominant Factor ◽  
Earth Orbit ◽  
Navigation Satellite ◽  
Differential Code Bias ◽  
Code Bias ◽  
Gnss Network

Abstract. 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 multi-GNSS network observations (2013–2014) based on global ionospheric maps (GIMs) from the Center for Orbit Determination in Europe (CODE), which are compared with Global Positioning System (GPS) results. The DCB of BDS satellites is a little less stable than GPS solutions, especially for geostationary Earth orbit (GEO) satellites. The BDS GEO observations decrease the precision of inclined geosynchronous satellite orbit (IGSO) and medium Earth orbit (MEO) DCB estimations. The RMS of BDS satellites DCB decreases to about 0.2 ns when we remove BDS GEO observations. Zero-mean condition effects are not the dominant factor for the higher RMS of BDS satellites DCB. Although there are no obvious secular variations in the DCB time series, sub-nanosecond variations are visible for both BDS and GPS satellites DCBs during 2013–2014. For satellites in the same orbital plane, their DCB variations have similar characteristics. In addition, variations in receivers DCB in the same region are found with a similar pattern between BDS and GPS. These variations in both GPS and BDS DCBs are mainly related to the estimated error from ionospheric variability, while the BDS DCB intrinsic variation is in sub-nanoseconds.

Influence of the GLONASS inter-frequency bias on differential code bias estimation and ionospheric modeling

GPS Solutions ◽  
2017 ◽  
Vol 21 (3) ◽  
pp. 1355-1367 ◽  
Author(s):  
Xiaohong Zhang ◽  
Weiliang Xie ◽  
Xiaodong Ren ◽  
Xingxing Li ◽  
Keke Zhang ◽  
...  
Keyword(s):  
Bias Estimation ◽  
Differential Code Bias ◽  
Ionospheric Modeling ◽  
Code Bias
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