Results 21 to 30 of about 10,018,306 (276)

Drag Sail Conceptual Design for Satellite Orbit Reduction in Low Earth Orbit [PDF]

open access: yesفناوری در مهندسی هوافضا, 2021
The main purpose of this paper is to provide a regular design process of drag sail for deorbiting a satellite in LEO orbit concerning the mission requirements. In this regard, the design requirements and manufacturing considerations of the drag sail have
Ali Kasiri   +2 more
doaj   +1 more source

Low Earth Orbit Satellite Systems

open access: yesJournal of Telecommunications and the Digital Economy, 2022
Satellites have been around for many decades, yet the low Earth orbit (LEO) was avoided as the cost exceeded the demand until recently. This paper is based on a live presentation to the Australian Telecommunications Association (TelSoc) by Ruth Pritchard-Kelly, Senior Advisor on Regulatory Affairs for OneWeb, and was chaired by TelSoc Broadband Futures
Ruth Pritchard-Kelly, John Costa
openaire   +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   +3 more sources

Test and Performance Analysis Methods of Low Earth Orbit GPS Receiver [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2006
The use of GPS receiver at outer space becomes common in low earth orbit. Recently most of satellites use GPS receiver as navigation solution for finding satellite position.
Dae-Won Chung, Sang-Jeong Lee
doaj   +1 more source

System modelling of very low Earth orbit satellites for Earth observation [PDF]

open access: yesActa Astronautica, 2021
23 pages, 6 figures, Accepted for publication in Acta Astronautica (2021-07-03)
Crisp, N.H.   +10 more
openaire   +6 more sources

Analysis on the coverage performance and networking scheme of an MEO constellation

open access: yesDianxin kexue, 2022
Geostationary earth orbit (GEO) satellite orbit position resources have been scarce for a long time.The development of giant low-orbit satellite constellations has made the low-orbit resources unprecedentedly scarce.As a compromise between GEO and low ...
Yanbin ZHAO, Renning WANG, Peipei HU
doaj   +2 more sources

Satellite laser ranging to low Earth orbiters: orbit and network validation [PDF]

open access: yesJournal of Geodesy, 2018
Satellite laser ranging (SLR) to low Earth orbiters (LEOs) provides optical distance measurements with mm-to-cm-level precision. SLR residuals, i.e., differences between measured and modeled ranges, serve as a common figure of merit for the quality assessment of orbits derived by radiometric tracking techniques. We discuss relevant processing standards
Daniel Arnold   +3 more
openaire   +6 more sources

Design of optimal Earth pole-sitter transfers using low-thrust propulsion [PDF]

open access: yes, 2012
Recent studies have shown the feasibility of an Earth pole-sitter mission using low-thrust propulsion. This mission concept involves a spacecraft following the Earth's polar axis to have a continuous, hemispherical view of one of the Earth's poles.
Biggs, James   +3 more
core   +3 more sources

An aerostable drag-sail device for the deorbit and disposal of sub-tonne, low earth orbit spacecraft [PDF]

open access: yes, 2006
There is an increasing amount of debris in low Earth orbit arising from the disintegration and collision of old spacecraft which have not been removed from orbit. A ‘bolt-on’ deorbit device to be attached to new spacecraft is therefore proposed, which
Harkness, Patrick George
core   +3 more sources

Study the Effect of Solar Radiation Pressure at Several Satellite Orbits

open access: yesمجلة بغداد للعلوم, 2013
The effects of solar radiation pressure at several satellite (near Earth orbit satellite, low Earth orbit satellite, medium Earth orbit satellite and high Earth orbit satellite ) have been investigated.
Baghdad Science Journal
doaj   +1 more source

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