Results 11 to 20 of about 10,703 (257)

Volcanic Ash Retrieval Using a New Geostationary Satellite [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
The paper presents currently developing method of volcanic ash detection and retrieval for the Geostationary Korea Multi-Purpose Satellite (GK-2A).
K. H. Lee, K. T. Lee
doaj   +2 more sources

Displaced geostationary orbit design using hybrid sail propulsion [PDF]

open access: yes, 2011
Due to an increase in number of geostationary spacecraft and limits imposed by east-west spacing requirements, the geostationary orbit is becoming congested.
Biggs, James   +9 more
core   +1 more source

Self-organising satellite constellation in geostationary Earth orbit [PDF]

open access: yes, 2015
This paper presents a novel solution to the problem of autonomous task allocation for a self-organizing satellite constellation in Earth orbit. The method allows satellites to cluster themselves above targets on the Earth’s surface.
Colombo, Camilla   +3 more
core   +1 more source

Optimized Analytical Solution of Platform Panel Radiative Area Dimensioning of Geostationary Communications Satellites: A Practical Approach

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Determiningradiative areas of geostationary satellite are one of the challenging tasks forsatellite thermal engineers at the early stage of the project.
Murat Bulut, Nedim Sözbir
doaj   +1 more source

Group size estimation for hybrid satellite/terrestrial reliable multicast [PDF]

open access: yes, 2004
This paper addresses the problem of group size estimation for hybrid satellite/terrestrial multipoint communications. Estimators based on the maximum likelihood principle are investigated.
L. Dairaine   +7 more
core   +1 more source

Disposal orbits for GEO spacecraft: A method for evaluating the orbit height distributions resulting from implementing IADC guidelines [PDF]

open access: yes, 2010
Geostationary orbit (GEO) is the most commercially valuable Earth orbit. The Inter-Agency Space Debris Coordination Committee (IADC) has produced guidelines to help protect this region from space debris.
Hobbs, Stephen
core   +1 more source

Interferometric orbit determination for geostationary satellites [PDF]

open access: yesScience China Information Sciences, 2017
The final publication is available at link.springer.com via http://dx.doi.org/10.1007/s11432-016-9052-y Future GeoSAR missions are expected to provide higher resolution radar images featuring shorter revisit times by locating a radar payload on-board of a geostationary satellite. One of the main challenges in GeoSAR processing is accurately determining
Martin Fuster, Roger   +2 more
openaire   +3 more sources

Optimal Configuration for Satellite PEPs using a Reliable Service on Top of a Routers-Assisted Approach [PDF]

open access: yes, 2009
Routers-assisted congestion control protocols, also known as Explicit Rate Notification (ERN) protocols, implement complex algorithms inside a router in order to provide both high link utilization and high fairness.
Dino Martin Lopez-Pacheco   +4 more
core   +1 more source

Modeling and Analysis of Battery Thermal Control in a Geostationary Satellite

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
Battery technology has been used for geostationary satellites since the first satellite sputnik-1 was launched in 1957. The majority of larger geostationary satellite’s lives range from 7 to 15 years. During the lifetime of satellites, the batteries used
Nedim Sözbir, Murat Bulut
doaj   +1 more source

Pioneering evaluation of GaN transistors in geostationary satellites [PDF]

open access: yesScientific Reports, 2022
AbstractIn this paper, we present the results of a 6-year experiment in space that studied the effects of radiation in Gallium Nitride (GaN) electronics in geostationary orbit. Four GaN transistors in a Colpitts oscillator configuration were flown in the Component Technology Test-Bed aboard the Alphasat telecommunication satellite. A heuristic analysis
Hugo Mostardinha   +11 more
openaire   +3 more sources

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