Results 71 to 80 of about 803,175 (272)
Collocation of Geostationary Satellites Using Convex Optimization [PDF]
Journal of Guidance, Control, and Dynamics, 2016 A method is developed to determine station-keeping maneuvers for a fleet of satellites collocated in a geostationary slot. The method is enabled by a linear time-varying formulation of the satellite orbit dynamics in terms of nonsingular orbital elements.
de Bruijn, F.J. +3 more
openaire +2 more sources
Autonomous control of a reconfigurable constellation of satellites on geostationary orbit with artificial potential fields [PDF]
, 2012 This paper presents a method of controlling a constellation of small satellites in Geostationary Earth Orbit (GEO) such that the constellation is able to reconfigure - changing the angular position of its members relative to the Earth’s surface in order ...
Colombo, Camilla +2 more
core
Advanced Fade Mitigation Techniques for Q/V Band SATCOM Systems
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Adaptive fade mitigation techniques, such as smart gateway diversity (SGD), are essential in addressing atmospheric fading affecting the operation of high throughput and very high throughput satellite systems at Ka‐band and beyond. Specifically, the Q/V‐band, offering up to 5 GHz of available spectrum, is very attractive for future high data ...
Marianna Biscarini +5 more
wiley +1 more source
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
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley +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 +4 more
doaj +1 more source
Autonomous satellite constellation for enhanced Earth coverage using coupled selection equations [PDF]
, 2013 This paper presents a novel solution to the problem of autonomous task allocation for a self-organising constellation of small satellites in Earth orbit.
Colombo, Camilla +3 more
core
Self-organizing nonlinear output (SONO): A neural network suitable for cloud patch-based rainfall estimation at small scales [PDF]
, 2005 Accurate measurement of rainfall distribution at various spatial and temporal scales is crucial for hydrological modeling and water resources management.
Gao, X, Hong, Y, Hsu, KL, Sorooshian, S
core +2 more sources
IEEE Transactions on Geoscience and Remote Sensing, 2018 We developed a scheme to improve hourly estimates of aerosol optical thickness (AOT) from the Advanced Himawari Imager (AHI) onboard Himawari-8, the Japan Meteorological Agency’s latest geostationary satellite.
M. Kikuchi +4 more
semanticscholar +1 more source
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 +3 more
wiley +1 more source