Results 11 to 20 of about 6,561 (302)
Satellite-enabled LTE systems in LEO constellations [PDF]
2017 IEEE International Conference on Communications Workshops (ICC Workshops), 2017 LTE-based satellite systems in LEO constellations are a promising solution for extending broadband coverage to areas not connected to a terrestrial infrastructure. However, the large delays and Doppler shifts over the satellite channel pose severe technical challenges to a traditional LTE system.
Alessandro Guidotti +8 more
openaire +5 more sources
Low cost satellite constellations for nearly continuous global coverage. [PDF]
Nat Commun, 2020 Satellite services are fundamental to the global economy, and their design reflects a tradeoff between coverage and cost. Here, we report the discovery of two alternative 4-satellite constellations with 24- and 48-hour periods, both of which attain ...
Singh LA +5 more
europepmc +2 more sources
Deployment of Small Satellite Constellations Using the Effect of the Earth’s Oblateness [PDF]
فصلنامه علوم و فناوری فضایی, 2023 Recent advancements in space technology have sparked significant interest in small satellite constellations, primarily due to their reduced costs, quicker development cycles, and improved capabilities.
Seid Javad Mousavi Torkamani +2 more
doaj +1 more source
Analysis on the coverage performance and networking scheme of an MEO constellation
Dianxin 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
Analysis of Initial Deployment Strategy for Low-Orbit Large-Scale Constellations
International Journal of Aerospace Engineering, 2022 With the development of commercial space technology, low-orbit large-scale satellite constellation has shown great development potential in communication services and military applications due to its advantages of low delay, strong signal, high coverage ...
Feifei Li +4 more
doaj +1 more source
Satellite Constellation Internet Affordability and Need [PDF]
Research Notes of the AAS, 2020 Abstract Large satellite constellations in low-Earth orbit seek to be the infrastructure for global broadband Internet and other telecommunication needs. We briefly review the impacts of satellite constellations on astronomy and show that the Internet service offered by these satellites will primarily target populations where it is ...
Rawls, Meredith L. +5 more
openaire +2 more sources
Legal Aspects Around Satellite Constellations ::Volume 2 /
, 2021 This book is the highly anticipated sequel to the previous volume under the same title, dedicated to presenting a diverse range of timely and valuable contributions on the legal and policy related questions evoked by satellite constellations, including ...
Froehlich, Annette,
core +1 more source
Low-Orbit Large-Scale Communication Satellite Constellation Configuration Performance Assessment
International Journal of Aerospace Engineering, 2022 A constellation configuration performance evaluation method is proposed for the performance evaluation of the low-orbit large-scale communication satellite constellations.
Tianyu Sun, Min Hu, Chaoming Yun
doaj +1 more source
A Study of Autonomous Small Satellite Constellations for Disaster Management and Deep Space Strategy
Remote Sensing, 2022 The complex and dynamic space environment is both exciting and challenging in this NewSpace era. In particular, Low-Earth Orbits are being realigned and reinvented for various purposes using suitable technological advancement.
Mohammed Irfan Rashed, Hyochoong Bang
doaj +1 more source
The Global Competitive Situation and Strategy of Space Frequency and Orbit Resources
天地一体化信息网络, 2021 Combined with ITU Radio Rules and the actual in-orbit satellites situation, the satellite communication frequency resource allocation, the regulation and the use of orbital positions were analyzed, the planning and frequency-orbit resources of the ...
Feng LAN, Zhaoqi PENG
doaj +2 more sources