Results 11 to 20 of about 6,613 (256)

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

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

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

Survey of Low Earth Orbit Satellite Communication Network Routing Technology

open access: yes天地一体化信息网络, 2022
Low earth orbit satellite communication network is an important part of the internet of everything era, but the characteristics of satellite constellation topology such as high dynamic, limited heterogeneous resources and unbalanced network service ...
Shuang ZHENG, Xing ZHANG, Wenbo WANG
doaj   +2 more sources

Challenges of Using the L-Band and S-Band for Direct-to-Cellular Satellite 5G-6G NTN Systems

open access: yesTechnologies, 2023
This article presents a comprehensive study of the potential utilization of the L-band and S-band frequency ranges for satellite non-terrestrial network (NTN) technologies.
Alexander Pastukh   +3 more
doaj   +1 more source

Spatial Geometry Design of a Low Earth Orbit Constellation for Iranian Regional Navigation Satellite System [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
The regional navigation satellite system (RNSS) is recently used in some countries to cover or enhance their local navigation. The most important satellite navigation systems to date are in the Earth medium orbit (MEO) and Earth synchronous Earth orbit ...
Reza Zardashti, Shiva Emami
doaj   +2 more sources

T3P: Demystifying Low-Earth Orbit Satellite Broadband

open access: yesCoRR, 2023
The Internet is going through a massive infrastructural revolution with the advent of low-flying satellite networks, 5/6G, WiFi7, and hollow-core fiber deployments. While these networks could unleash enhanced connectivity and new capabilities, it is critical to understand the performance characteristics to efficiently drive applications over them.
Shubham Tiwari   +10 more
openaire   +2 more sources

LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges

open access: yesGeo-spatial Information Science, 2021
With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge   +8 more
doaj   +1 more source

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