Results 41 to 50 of about 6,099 (169)

Spin Axis Determination of Defunct GLONASS Satellites Using Photometry Observation

open access: yesJournal of Astronomy and Space Sciences, 2021
GLONASS, a satellite navigation system developed in Russia since 1976, is defunct and orbits in an unstable attitude. The satellites in these problems are not managed and there is no precise information, which can increase the risk of collisions with ...
Jeeho Lee   +5 more
doaj   +1 more source

On the concept of normative evaluation of cost-effectiveness of GLONASS application in coastal regions [PDF]

open access: yesBaltic Region, 2011
Russia promotes the application of GLONASS satellite information system in regional economies. In three regions, the system has already been introduced and is widely used, 21 more regions are introducing the system. Experts believe that this process will
Ivchenko Vladislav, Boronilov Anatoly
doaj   +1 more source

Characterization of High‐Frequency GNSS Total Electron Content Variations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract Global Navigation Satellite System (GNSS)–derived Total Electron Content (TEC) is widely used to investigate ionospheric variability, but has primarily been applied to low‐frequency fluctuations. Here we present a long‐term statistical characterization of high‐frequency (30–500 mHz) TEC variations using multi‐constellation GNSS data from 11 ...
J. Pérez‐Coll Jiménez   +3 more
wiley   +1 more source

Comparing GPS/GLONASS, GPS and GLONASS results in a global network [PDF]

open access: yes, 2010
URL: http://sujest.selcuk.edu.tr/sumbtd/article/view/176Teknolojinin gelişimine paralel olarak uydularla konum belirleme önemini gün geçtikçe arttırmaktadır.
Alçay, Salih, İnal, Cevat
core  

INTEGRAÇÃO GPS E GLONASS APLICADA AOS LEVANTAMENTOS GEODÉSICOS [PDF]

open access: yes, 2001
Tanto o NAVSTAR-GPS (NAVigation System with Time And Ranging Global Positioning System) como o seu similar GLONASS (Global Navigation Satellite System) oferecem uma poderosa ferramenta para a determinação de coordenadas de pontos na superfície terrestre.
do Lago, Isabel Franco
core   +1 more source

The Use of Artificial Intelligence in Enhancing Navigation Safety in Case of GNSS Signal Fading or Interference [PDF]

open access: yesTransNav
Global 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

Key Parameters for the Ionospheric Detection of Tsunamis From the 29 July 2025 Kamchatka Event

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.
Abstract It has been demonstrated that tsunamis generate internal gravity waves (GWs) detectable in the ionosphere within 20–60 min after their generation at the ocean surface. Despite numerous simulation and observation studies on ionospheric signatures of tsunamis, the detection of Co‐tsunamic Ionospheric Disturbances (CTIDs) and distinguishing them ...
Clélia Maréchal   +4 more
wiley   +1 more source

SPACE WEATHER: RISK FACTORS FOR GLOBAL NAVIGATION SATELLITE SYSTEMS

open access: yesSolar-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

Variation of Global Ionospheric Scintillation and Its Effect on GPS Kinematic PPP‐AR Performance During Geomagnetic Storms in Solar Cycle 25: A Statistical Analysis

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract Enhanced small‐scale ionospheric irregularities during geomagnetic storms can disturb Global Navigation Satellite System (GNSS) carrier‐phase tracking and are associated with reduced stability of ambiguity‐fixed precise point positioning (PPP‐AR), but their impact on kinematic positioning remains insufficiently quantified.
Dongsheng Zhao   +7 more
wiley   +1 more source

Comparing GLONASS-only with GPS-only and hybrid positioning in various length of baselines

open access: yes, 2012
Nowadays, GPS is the best positioning system with its constellation, but number of GLONASS satellites increased to the required number, with launched new ones, for positioning.
Inal, C.   +11 more
core   +1 more source

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