Results 1 to 10 of about 6,111 (139)

Darkening Low-Earth Orbit Satellite Constellations: A Review [PDF]

open access: yesIEEE Access, 2022
The proliferation of low-earth orbit (LEO) satellites and the LEO satellite internet will be a game-changer for the low-latency high-speed global internet.
Ali Lalbakhsh   +5 more
doaj   +3 more sources

A Particle Swarm Optimization-Based Queue Scheduling and Optimization Mechanism for Large-Scale Low-Earth-Orbit Satellite Communication Networks [PDF]

open access: yesSensors
The spatial topology of large-scale low-Earth-orbit satellite communication networks is dynamically time-variant, and the load on the output ports of network nodes is continuously changing.
Ziyong Zhang   +6 more
doaj   +2 more sources

Efficient Modulation Classification Based on Complementary Folding Algorithm in UVLC System

open access: yesIEEE Photonics Journal, 2022
Modulation classification (MC) has become a widely used technology, which is of great value in both commercial and civil applications. It actually completes the classification task of modulation signal through various means.
Chi Xu, Ruizhe Jin, Wendi Gao, Nan Chi
doaj   +1 more source

Orbit Design and Trajectory Analysis of satellite in Low Earth Orbit [PDF]

open access: yesINCAS Bulletin, 2021
An Attitude control system for a satellite in low earth orbit is designed in this project. As a reference, CARTOSAT-2 is selected to design the AOCS. CARTOSAT-2 is located in LEO so it suits the needs of the projects.
M. RAJA   +4 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

LEO Satellite Constellation for Global-Scale Remote Sensing With On-Orbit Cloud AI Computing

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
This article proposes a new satellite-based framework for global-scale remote sensing that is integrated with on-orbit cloud computing and artificial intelligence (AI) services.
Yuejin Li   +4 more
doaj   +1 more source

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

BeiDou Augmented Navigation from Low Earth Orbit Satellites [PDF]

open access: yesSensors, 2019
Currently, the Global Navigation Satellite System (GNSS) mainly uses the satellites in Medium Earth Orbit (MEO) to provide position, navigation, and timing (PNT) service. The weak navigation signals limit its usage in deep attenuation environments, and make it easy to interference and counterfeit by jammers or spoofers.
Mudan Su   +3 more
openaire   +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

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

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