Results 51 to 60 of about 5,771 (200)
IGS-MGEX: Preparing the Ground for Multi-Constellation GNSS Science [PDF]
, 2013 With a total of four new and emerging constellations (BeiDou, Galileo, QZSS, IRN SS) as well as the ongoing modernization of GPS and GLONASS the world of satellite navigation presently experiences dramatic changes.
Langley, Richard +6 more
core
Kombinierte Auswertung von Beobachtungen der globalen Satellitennavigationssysteme Beidou und GPS [PDF]
, 2014 Increasingly geodetic science applications require reliable, rapid, precise and, ideally, real time positioning capability. With GNSS positioning techniques today's geodesists can expect positioning accuracy ranging from metre-level to mm, depending upon
Li, Qing
core +1 more source
The Use of Artificial Intelligence in Enhancing Navigation Safety in Case of GNSS Signal Fading or Interference [PDF]
TransNavGlobal Navigation Satellite Systems (GNSS) play a key role in modern navigation and transportation service delivery. Today it is difficult to imagine the daily operation of land, sea or air transportation without the positioning and timing provided by ...
Marcin Chrzan
doaj +1 more source
Design of Beidou timing module
IOP Conference Series: Earth and Environmental Science, 2020 Abstract The Beidou timing module receives the Beidou Satellite Information, calculates the time and positioning information, transmits the time and timing information through various external interfaces, and has the function of short message forwarding. This paper presents a system design scheme for the Beidou time-keeping module, which
openaire +1 more source
A Data‐Driven Review of Geoscience Research Evolution Using SciBERT‐Based Topic and Network Analysis
Geoscience Data Journal, Volume 13, Issue 4, October 2026.This review synthesises the evolution of global geoscience research from 2004 to 2023 using large‐scale bibliometric evidence. By combining keyword co‐occurrence network analysis with SciBERT‐based topic modelling, it identifies major paradigm transitions from geology‐centred research to climate‐focused studies and recent data‐ and AI‐driven ...
Sooyeon Han, Ju‐seop Kim
wiley +1 more source
GNSS Satellite Orbit Validation Using Satellite Laser Ranging [PDF]
, 2013 With a total of four new regional and global navigation sa tellite systems that have launched first satellites or even started an operational serv ice, the GNSS landscape has experienced major changes in recent years.
Steigenberger, Peter +2 more
core
Geodesy and Geodynamics, 2023 The space constellation of the BeiDou navigation satellite system (BDS) is a hybrid constellation containing medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, and inclined geosynchronous orbit (IGSO) satellites.
Jingjing Wang, Chao Zhou, Zhixuan Sun
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 573-593, September/October 2026.ABSTRACT Low Earth Orbit (LEO) satellite communication systems have evolved into a critical component of global broadband networks, enabling wide‐area connectivity, IoT services, and intelligent multilayer satellite–terrestrial integration. Despite rapid advancements in constellation deployment, routing mechanisms, resource management, and LEO–5G/6G ...
Wei‐Hao Su +2 more
wiley +1 more source
CGAN BeiDou Satellite Short-Message-Encryption Scheme Using Ship PVT
, 2022 The transmission standard and format of short-message communication in the BeiDou satellite-navigation-system are open, the civilian channel adopts a direct-transmission plaintext mechanism, and the content of short messages is at risk of data leaks ...
Lanyong Zhang, Di Wu, Sheng Liu
core +1 more source