Results 31 to 40 of about 25,636 (260)

Retrieving Precipitable Water Vapor From Shipborne Multi‐GNSS Observations [PDF]

open access: yes, 2019
©2019. American Geophysical UnionPrecipitable water vapor (PWV) is an important parameter for climate research and a crucial factor to achieve high accuracy in satellite geodesy and satellite altimetry. Currently Global Navigation Satellite System (GNSS)
Ge, Maorong   +8 more
core   +1 more source

System-specific systematic errors in earth rotation parameters derived from GPS, GLONASS, and Galileo

open access: yesGPS Solutions, 2020
The earth rotation parameters (ERPs) are time-variable global geodetic parameters with a purely geophysical origin. Theoretically, the estimates of these parameters should be independent of the satellite constellation used in GNSS processing. Nonetheless,
R. Zajdel   +4 more
semanticscholar   +1 more source

Ionospheric effects of the solar flares of September 23, 1998 and July 29, 1999 as deduced from global GPS network data [PDF]

open access: yes, 2000
This paper presents data from first GPS measurements of global response of the ionosphere to solar flares of September 23, 1998 and July 29, 1999. The analysis used novel technology of a global detection of ionospheric effects from solar flares (GLOBDET)
A.T. Altyntsev   +27 more
core   +2 more sources

Análise do uso de dados GPS/GLONASS em diferentes métodos de posicionamento por satélites considerando a influência das condições ionosféricas brasileiras

open access: yesRevista Cartográfica, 2022
O GLONASS (GLObal NAvigation Satellite System) e o GPS (Global Positioning System) são os sistemas pioneiros de navegação global por satélite. A utilização combinada de dados GPS e GLONASS despertou interesse inicialmente, mas as pesquisas com ...
Gabriel Jerez   +1 more
doaj   +1 more source

An Integrated Framework for Sensing Radio Frequency Spectrum Attacks on Medical Delivery Drones

open access: yes, 2020
Drone susceptibility to jamming or spoofing attacks of GPS, RF, Wi-Fi, and operator signals presents a danger to future medical delivery systems. A detection framework capable of sensing attacks on drones could provide the capability for active responses.
Kulp, Philip H., Mei, Nagi
core   +1 more source

GLONASS-K attitude: rapid turning maneuvers and other deviations from ideal yaw steering

open access: yesGPS Solutions
This paper provides a description of the GLONASS-K yaw turn maneuvers that regularly occur at orbit noon and orbit midnight when the Sun’s elevation angle relative to the satellite orbital plane is between − 2.0 and + 2.0 degrees.
F. Dilßner, Tim Springer
semanticscholar   +1 more source

Estimating ocean tide loading displacements with GPS and GLONASS [PDF]

open access: yesSolid Earth, 2020
Ground displacements due to ocean tide loading have previously been successfully observed using Global Positioning System (GPS) data, and such estimates for the principal lunar M2 constituent have been used to infer the rheology and structure of the ...
B. Matviichuk, M. King, C. Watson
doaj   +1 more source

The GPS global detection of the ionospheric response to solar flares [PDF]

open access: yes, 2000
This author suggests the concept of a new technology for global detection (GLOBDET) of atmospheric disturbances of natural and technogenic origin, on the basis of phase measurements of the total electron content (TEC) in the ionosphere using an ...
Afraimovich, E. L.
core   +3 more sources

Positioning Using GPS and GLONASS Systems [PDF]

open access: yesTransNav, 2009
This paper presents an experiment involving the processing of observations using the GPS and GPS/GLONASS systems performed at the BOGO, BOGI, and JOZ2 IGS stations.
Lech Kujawa   +2 more
doaj  

Optimization of an aircraft flight trajectory in the GLONASS dynamic accuracy field

open access: yesНаучный вестник МГТУ ГА, 2019
The authors consider the problem of optimization of aircraft flight trajectories in air traffic management (ATM) on the basis of flexible routing technologies which involve the use of satellite navigation systems (SNS).
O. N. Skrypnik   +3 more
doaj   +1 more source

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