Results 11 to 20 of about 361 (154)

Consistency of MGEX Orbit and Clock Products

Engineering, 2020
The analysis centers of the Multi-GNSS Pilot Project of the International GNSS Service provide orbit and clock products for the global navigation satellite systems (GNSSs) Global Positioning System (GPS), GLONASS, Galileo, and BeiDou, as well as for the ...
Peter Steigenberger, Oliver Montenbruck
doaj   +2 more sources

Estimation and Analysis of BDS-3 Differential Code Biases from MGEX Observations [PDF]

Remote Sensing, 2019
The third generation of China’s BeiDou Navigation Satellite System (BDS-3) began to provide global services on 27 December, 2018. Differential code bias (DCB) is one of the errors in precise BDS positioning and ionospheric modeling, but the impacts
Qisheng Wang, Shuanggen Jin, Liangliang Yuan, Youjian Hu, Jie Chen, Jiabin Guo   +5 more
doaj   +2 more sources

Analysis and Assessment of BDS-3 Five Single-Frequency Civilian Signals Single Point Positioning Considering Time Group Delay and Intersignal Correction

International Journal of Aerospace Engineering
The BeiDou Global Navigation Satellite System (BDS-3) has been providing global positioning, navigation, and timing (PNT) services for over 3 years.
Xingli Sun
doaj   +2 more sources

Positioning Performance Comparison Between GPS and BDS With Data Recorded at Four MGEX Stations [PDF]

IEEE Access, 2020
In December 2018, the BeiDou III (BDS-3) basic system was completed and began to provide global services. along with the BeiDou second-generation satellite navigation system (BDS-2) and Beidou first-generation satellite navigation system (BDS-1), the ...
Xiaping Ma, Kegen Yu, Xiaoxing He, Jean-Philippe Montillet, Qinzheng Li   +4 more
doaj   +2 more sources

MGEx-Udb: a mammalian uterus database for expression-based cataloguing of genes across conditions, including endometriosis and cervical cancer. [PDF]

PLoS ONE, 2012
BACKGROUND: Gene expression profiling of uterus tissue has been performed in various contexts, but a significant amount of the data remains underutilized as it is not covered by the existing general resources.
Akhilesh K Bajpai, Sravanthi Davuluri, Darshan S Chandrashekar, Selvarajan Ilakya, Mahalakshmi Dinakaran, Kshitish K Acharya   +5 more
doaj   +1 more source

Performance Assessment of Multi-GNSS PPP Ambiguity Resolution with LEO-Augmentation

Remote Sensing, 2023
The fast motion of low Earth orbit (LEO) satellites provides rapid geometric changes in a short time, which can accelerate the initialization of precise point positioning (PPP).
Qin Li, Wanqiang Yao, Rui Tu, Yanjun Du, Mingyue Liu   +4 more
doaj   +1 more source

PWV Retrieval Performance Evaluation for the Fresh BDS‐3 With Multisource Data

Earth and Space Science, Volume 10, Issue 10, October 2023., 2023
Abstract The entire global operation of the newly launched BDS global navigation satellite system (BDS‐3) was completed in July 2020. After that, a series of performance tests were conducted, such as positioning, navigation, and signal experiments. However, the precipitable water vapor (PWV) retrieval performance evaluation of BDS‐3 has not yet been ...
Nan Jiang, Zhaorui Gao, Yuhao Wu, Yan Xu, Tianhe Xu, Song Li, Ao Guo   +6 more
wiley   +1 more source

Real‐time precise orbit determination for FY‐3C and FY‐3D based on BDS and GPS onboard observation

IET Radar, Sonar &Navigation, Volume 17, Issue 8, Page 1213-1229, August 2023., 2023
(1) The real‐time precise orbit determination (POD) for low earth orbit (LEO) satellites based on spaceborne global positioning system (GPS) and BDS‐2 observations are executed. (2) Code multipath piece‐wise linear (PWL) error model of BDS‐2 satellites is constructed and applied to real‐time LEO POD.
Zhiyu Wang, Liang Wang, Zishen Li, Mainul Hoque, Ningbo Wang, Dongyan Wei, Hong Yuan   +6 more
wiley   +1 more source

The structure of microbial communities in redoximorphic microsites of Gleysol

European Journal of Soil Science, Volume 74, Issue 3, May–June 2023., 2023
Abstract Microbial communities were studied in redoximorphic microsites of highly heterogeneous Gleysol at a mm scale using 16S and 18S amplicon sequencing to demonstrate if the composition of soil microbes reflects the differences in ferric and ferrous micro‐sites. In both explored gley horizons with redoximorphic features (Bg2 and Cg), ferric mottles
Ekaterina Samoilova, Václav Tejnecký, Jan Kopecky, Ondřej Drábek, Adam Stovicek, Petra Vokurková, Daria Rapoport, Karel Němeček, Andrea Buresova‐Faitova, Rostislav Chotěborský, Tereza Patrmanová, Monika Hromasová, Marketa Sagova‐Mareckova   +12 more
wiley   +1 more source

Multi-GNSS clock combination with consideration of inconsistent nonlinear variation and satellite-specific bias

Earth, Planets and Space, 2022
As part of the International GNSS Service (IGS) multi-GNSS Pilot Project (MGEX), precise orbit and clock products for multi-GNSS constellations have been submitted by several analysis centers (ACs) since 2012.
Guo Chen, Jing Guo, Na Wei, Min Li, Qile Zhao, Jun Tao   +5 more
doaj   +1 more source