Results 61 to 70 of about 19,053 (217)
SPACE WEATHER: RISK FACTORS FOR GLOBAL NAVIGATION SATELLITE SYSTEMS
Solar-Terrestrial Physics, 2021 Extreme space weather events affect the stability and quality of the global navigation satellite systems (GNSS) of the second generation (GPS, GLONASS, Galileo, BeiDou/Compass) and GNSS augmentation.
V.V. Demyanov, Yu.V. Yasyukevich
doaj +1 more source
The Inevitability of Militarization of Outer Space [PDF]
, 2019 At the end of the second decade of the 21st century, we witness a progressive increase of strategic importance of artificial satellites and other orbital systems, which is a consequence of the ever-accelerating development of space technologies that ...
Bernat, Paweł
core +1 more source
Holocene subaqueous landslide dynamics in the Lake Siljan‐Orsasjön Basin, south‐central Sweden
Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.Subaqueous landslide areas studied by multibeam bathymetry, sub‐bottom profiling and sediment coring reveal complex stratigraphies, suggesting mass movement events starting close to the area's deglaciation and up to very recent times. Abstract The Siljan‐Orsasjön Basin in south‐central Sweden hosts two prominent lakes.
Per Möller +6 more
wiley +1 more source
About Security Global Navigation Satellite System GLONASS
Безопасность информационных технологий, 2011 Threats of a security of global navigating satellite system GLONASS are considered, as well as the key threats influencing reliability of navigating definitions are allocated. The method of orbital monitoring of threats of a security of system GLONASS is
M. Y. Senatorov, R. B. Syatkovskiy
doaj
Spacecraft VLBI and Doppler tracking: algorithms and implementation [PDF]
, 2012 We present the results of several multi-station Very Long Baseline Interferometry (VLBI) experiments conducted with the ESA spacecraft Venus Express as a target.
Bahamon, Tatiana Bocanegra +5 more
core +1 more source
Global Bottomside Ionospheric Modeling Based on GNSS‐RO Observations From the Tianmu‐1 Constellation
Space Weather, Volume 24, Issue 3, March 2026.Abstract Radio occultation (RO) observations provide a crucial means for estimating the global Vertical Bottomside Electron Content (VBEC) in the ionosphere. However, the limited number of low Earth orbit (LEO) satellites in existing RO missions restricts the capability for high‐precision reconstruction of global VBEC spatiotemporal variations.
Linghuo Jian +4 more
wiley +1 more source
Space Weather, Volume 24, Issue 3, March 2026.Abstract Complex space weather, such as typhoons and solar activity, can cause heavy rainfall and ionospheric disturbances, affecting the quality of Global Navigation Satellite System (GNSS) signals. Among GNSS positioning techniques, Precise Point Positioning Real‐time Kinematic (PPP‐RTK) uses atmospheric corrections and bias products to achieve fast ...
Jiahuan Hu +6 more
wiley +1 more source
U.S. Law of the Sea Cruise to Map the Foot of the Slope and 2500-m Isobath of the U.S. Arctic Ocean Margin. Cruise Report for 2008 [PDF]
, 2007 USCGC Icebreaker Healy (WAGB-20) U.S. Law of the Sea cruise to map the foot of the slope and 2500-m isobath of the US Arctic Ocean margin CRUISES HE-0805 August 14 to September 5, 2008 Barrow, AK to Barrow ...
Armstrong, Andy, Mayer, Larry A.
core +4 more sources
Scientific and technical support of GLONASS application in agricultural production
Сельскохозяйственные машины и технологии, 2015 Introduction of technologies of the operated farming in agricultural production will support quality hi-tech breakthrough of agrarian sector of economy and a demand of GLONASS system and means in agriculture.
A. A. Artyushin, I. G. Smirnov
doaj
Statistical framework for estimating GNSS bias
, 2015 We present a statistical framework for estimating global navigation satellite system (GNSS) non-ionospheric differential time delay bias. The biases are estimated by examining differences of measured line integrated electron densities (TEC) that are ...
Coster, Anthea J. +4 more
core +2 more sources