Results 81 to 90 of about 5,771 (200)
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract In this study, daytime F‐region irregularities were observed at low latitudes during the main phase of the 12 November 2025 strong magnetic storm, causing intense very high frequency radar echoes ranging hundreds of kilometers in altitude.
Wenjie Sun +10 more
wiley +1 more source
Unconstrained GNSS Water Vapor Tomography With Real Data and LEO Augmentation
Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.Abstract The availability of four complete GNSS constellations (GPS, GLONASS, BeiDou and Galileo) offers, for the first time, the possibility of performing water vapor tomographic inversions that do not rely on external data. A tomographic model that includes no external constraints and requires no first guess and no virtual observations is described ...
P. M. A. Miranda +3 more
wiley +1 more source
Integrated positioning method of roadheader based on inertial technology
Meitan kexue jishuIn view of the environmental constraints such as long working cycle and large vibration amplitude during the cutting of the roadheader in the fully mechanized excavation face, it is difficult for a single inertial navigation system to realize autonomous,
Lingfei SUN +5 more
doaj +1 more source
BDS Empowers Smart Water Conservancy Construction: Current Status, Challenges, and Future Opportunities [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe BeiDou Navigation Satellite System (BDS) is a critical spatial-temporal infrastructure in China, and since its inception, it has been widely applied across various socio-economic sectors.
Z. Pang +5 more
doaj +1 more source
, 2014 Beidou is the regional satellite navigation system in China, consisting of three kinds of orbiting satellites, MEO, GEO and IGSO, with the orbital altitudes of 21500-36000 kin.
Wang, Yuan-Ming +8 more
core
An Evaluation of the Beidou Time System (BDT)
, 2011 The evaluation of Beidou system time is one of the important tasks in constructing and developing the Beidou satellite navigation system. The evaluation methods based on two-way satellite time and frequency transfer method (TWSTFT) and GPS common-view ...
Wen-hai Jiao +4 more
core +1 more source
AtmosphereThe Weather Research and Forecasting (WRF) model was used to simulate Typhoon Rumbia in this paper. The sensitivity experiments were conducted with 16 different parameterization combination schemes, including four microphysics (WSM6, WSM5, Lin, and ...
Li Li +4 more
doaj +1 more source
gLAB upgrade with BeiDou navigation system signals [PDF]
, 2015 The gLAB tool suit is an educational and professional multipurpose GNSS data processing software. It has been developed by gAGE/UPC under a contract of the European Space Agency (ESA). The current version of gLAB allows full GPS data processing with High
Wang, Xiaoli
core +2 more sources
Instantaneous BeiDou–GPS attitude determination: A performance analysis
, 2014 The advent of modernized and new global navigation satellite systems (GNSS) has enhanced the availability of satellite based positioning, navigation, and timing (PNT) solutions.
Nandakumaran Nadarajah (20056827) +2 more
core +2 more sources
Architecture design of BeiDou global navigation signals
Geo-spatial Information ScienceNavigation signals play a crucial role in determining the performance and user experience of Global Navigation Satellite System (GNSS). In recent years, GNSSs have been actively modernizing their signal architectures to meet the increasing demand for high precision, robustness, specialization, and internationalization services.
Shuren Guo, Chengeng Su, Feiren Lv
openaire +2 more sources