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Valutazione dell'incertezza di propagazione orbitale per un satellite LEO [PDF]
, 2022 Determinare con precisione la posizione che occuperà un satellite costituisce un aspetto fondamentale in molte applicazioni spaziali. Il presente lavoro è finalizzato alla valutazione dell'incertezza di propagazione orbitale per un satellite LEO.
Peruffo, Mattia
core
A flexible LEO satellite modem with Ka-band RF frontend for a data relay satellite system [PDF]
, 2020 From a geostationary Earth orbit (GEO) satellite's perspective a low Earth orbit (LEO) satellite is visible on more than half of its orbit. Albeit the free-space loss of an inter-satellite link is much higher than the one of a direct ground link ...
Katona, Zoltán +13 more
core +1 more source
Applied Sciences, 2022 Low Earth orbit (LEO) satellites that can be used as computing nodes are an important part of future communication networks. However, growing user demands, scarce channel resources and unstable satellite–ground links result in the challenge to design an ...
Juan Wang +3 more
doaj +1 more source
LEO Satellite Communications with Massive MIMO [PDF]
ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020 Low earth orbit (LEO) satellite communications are expected to be incorporated in future wireless networks to provide global wireless access with enhanced data rates. Massive multiple-input multiple-output (MIMO) techniques, though widely used in terrestrial communication systems, have not been applied to LEO satellite communication systems.
Li You 0001 +5 more
openaire +3 more sources
Traffic simulation of broadband LEO constellation satellite communication system
Dianzi Jishu Yingyong, 2019 Due to the rapid development of small satellite technology，and the advantages of low earth orbit satellite(LEO) with low delay and low propagation loss as compared with the traditional geosynchronous orbit satellite(GEO), the broadband LEO constellation ...
Xu Jun, Lu Wei, Zhang Gengxin
doaj +1 more source
Network control in atm-based leo satellite networks
, 2022 S.321-335Low Earth Orbiting (LEO) satellite networks with on-board asynchronous transfer mode (ATM) switches hold the promise of offering an economically viable extension of terrestrial ATM systems by providing connectivity to areas where existing ...
Todorova, P.
core +1 more source
A Collaborative Inference Algorithm in Low-Earth-Orbit Satellite Network for Unmanned Aerial Vehicle
Drones, 2023 In recent years, the low-Earth-orbit (LEO) satellite network has achieved considerable development. Moreover, it is necessary to introduce edge computing into LEO networks, which can provide high-quality services, such as worldwide seamless low-delay ...
Zhengqian Xu +5 more
doaj +1 more source
Performance Analysis of LEO Satellite Networks [PDF]
, 2002 We present an analytical model for computing call blocking probabilities in a LEO satellite network that carries voice calls. Both satellite-fixed and earth-fixed constellations with inter-orbit links and hand-offs are considered. The model is analyzed approximately by decomposing it into sub-systems.
Abdul Halim Zaim +2 more
openaire +1 more source
Real-Time LEO Satellite Orbits Based on Batch Least-Squares Orbit Determination with Short-Term Orbit Prediction [PDF]
, 2022 The augmentation of the Global Navigation Satellite System (GNSS) by Low Earth Orbit (LEO) satellites is proposed as an effective method to improve the precision and shorten the convergence time of Precise Point Positioning (PPP).
Wang, Kan +9 more
core +1 more source
Conditional Contact Angle Distribution in LEO Satellite-Relayed Transmission [PDF]
, 2022 This letter characterizes the contact angle distribution based on the condition that the relay low earth orbit (LEO) satellite is in the communication range of both the ground transmitter and the ground receiver.
Ruibo Wang +8 more
core +2 more sources