Results 51 to 60 of about 10,703 (257)

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source

Multi-Criteria Ground Segment Dimensioning for Non-Geostationary Satellite Constellations [PDF]

, 2023
peer reviewedNon-Geostationary Orbit (NGSO) satellite constellations are becoming increasingly popular as an alternative to terrestrial networks to deliver ubiquitous broadband services.
ORTIZ GOMEZ, Flor de Guadalupe, Salih Abdu, Tedros, CHATZINOTAS, Symeon, MONZON BAEZA, Victor, LAGUNAS, Eva   +4 more
core   +1 more source

Validation of Sea Surface Temperature From GK-2A Geostationary Satellite and Error Reduction Considering Impact of Satellite Zenith Angle

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study evaluates the accuracy of sea surface temperature (SST) data produced by Korea's second geostationary satellite, GK-2A, over its first four years of operation (2019–2023).
Kyung-Ae Park, Hye-Jin Woo, Stephane Saux Picart, Anne O'Carroll, Eunha Sohn, HuiTae Joo, Joon-Soo Lee, Joon-Yong Yang   +7 more
doaj   +1 more source

Technical Note: Evolution, current capabilities, and future advance in satellite nadir viewing ultra-spectral IR sounding of the lower atmosphere [PDF]

Atmospheric Chemistry and Physics, 2009
Infrared ultra-spectral spectrometers have brought in a new era in satellite remote atmospheric sounding capability. During the 1970s, after the implementation of the first satellite sounding instruments, it became evident that much higher vertical ...
W. L. Smith Sr., H. Revercomb, G. Bingham, A. Larar, H. Huang, D. Zhou, J. Li, X. Liu, S. Kireev   +8 more
doaj  

Objective detection of gravity waves in Himawari‑8 imagery in support of aviation forecasting

Meteorologische Zeitschrift, 2020
In this paper, the applicability of an objective gravity wave detection method based on Gabor filter plus grating cell operators to Himawari‑8 geostationary satellite imagery is investigated for the visible, water vapor and infrared window bands.
Na He, Alexander Jann, Yong Wang
doaj   +1 more source

Preprocessing Procedure for Propagation Measurements on MEO Satellite Links

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper presents a software tool designed for preprocessing data from an experimental campaign aimed at characterizing the tropospheric propagation channel using Medium Earth Orbit (MEO) satellites. The collected data provide critical insights into the channel in scenarios involving continuous variations in azimuth and elevation, along with
Marlene Brás, Susana Mota, Armando Rocha   +2 more
wiley   +1 more source

Tracing Three Decades of Low Earth Orbit Satellite Communication Development: A Bibliometric and Main Path Analysis of Network Architectures, Protocol Evolution, and Emerging Intelligent Services

International Journal of Satellite Communications and Networking, EarlyView.
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, Ya‐Chen Chuang, Long‐Sheng Chen   +2 more
wiley   +1 more source

Advantages of Inter‐Calibration for Geostationary Satellite Sensors Onboard Twin Satellites

Geophysical Research Letters
To address the increasing demand for diurnal information on trace gases and aerosols, a series of geostationary (GEO) satellite programs called GEO‐constellation have been initiated, with the launch of the Geostationary Environment Monitoring ...
Yeeun Lee, Myoung‐Hwan Ahn, Mina Kang, Mijin Eo, Dohyeong Kim, Kyung‐Jung Moon   +5 more
doaj   +1 more source

Advanced satellite technique for volcanic activity monitoring and early warning

Annals of Geophysics, 2008
Nowadays, satellite remote sensing is an important tool for volcanic activity monitoring, thanks to several operational satellite platforms providing data everywhere with high observational frequencies and generally at low cost.
M. Ciampa, C. Filizzola, V. Tramutoli, F. Marchese, N. Pergola   +4 more
doaj   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada, Victor Monzon Baeza, Carlos Horcajo Fernández de Gamboa, Rocío Serrano Camacho, Carlos Monzo   +4 more
wiley   +1 more source