Results 31 to 40 of about 2,036 (280)

Traffic simulation of broadband LEO constellation satellite communication system

open access: yesDianzi 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

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   +1 more source

Network Pruning for Extending Satellite Service Life in LEO Satellite Constellations [PDF]

open access: yes2015 IEEE International Conference on Data Science and Data Intensive Systems, 2015
We address the problem of network pruning for extending the service life of satellites in LEO constellations. Satellites in LEO constellations can spend over 30 % of their time under the earth's umbra, time during which they are powered by batteries.
Mohammed Hussein   +2 more
openaire   +3 more sources

Extended Geometry and Probability Model for GNSS+ Constellation Performance Evaluation

open access: yesRemote Sensing, 2020
We proposed an extended geometry and probability model (EGAPM) to analyze the performance of various kinds of (Global Navigation Satellite System) GNSS+ constellation design scenarios in terms of satellite visibility and dilution of precision (DOP) et al.
Lingdong Meng   +4 more
doaj   +1 more source

A Computation Offloading Strategy in LEO Constellation Edge Cloud Network

open access: yes, 2022
With the rise of a new generation of low Earth orbit (LEO) satellite constellations and the advancement of the 6G network, satellite–terrestrial integrated Internet of Things (IoT) in the future will achieve global coverage through the integration ...
Chenhua Sun   +4 more
core   +1 more source

Impact of Optical ISL on Satellite Routing Path Discovery in LEO Satellite Mega-Constellation

open access: yes, 2021
The satellite network is one of the key technology of future communications. However, traditional geostationary orbit (GEO) satellite systems have significant problems of a long latency and a heavy launch cost.
Kwak, Jeongho   +2 more
core   +1 more source

Analysis on Low-Earth-Orbit Constellation Networking and Adaptability of Ground IP Routing Technology

open access: yes天地一体化信息网络, 2020
With the development of the national major project of space-integrated-ground information network including space-based access network and LEO constellation system,it is urgently to be solved how to deal with the routing problem of LEO constellation with
Ci HE   +3 more
doaj   +2 more sources

Cross-Domain Fusion Constellation Design of Communication, Navigation and Remote Sensing

open access: yesApplied Sciences, 2023
Low earth orbit (LEO) mega-constellations have once again triggered a wave of space-based system construction. On the one hand, LEO communication, LEO navigation, LEO remote sensing constellations and so on are proposed.
Junxiang Qin   +4 more
doaj   +1 more source

Dual-Satellite Alternate Switching Ranging/INS Integrated Navigation Algorithm for Broadband LEO Constellation Independent of Altimeter and Continuous Observation

open access: yes, 2021
In challenging environments such as forests, valleys and higher latitude areas, there are usually fewer than four visible satellites. For cases with only two visible satellites, we propose a dual-satellite alternate switching ranging integrated ...
Lvyang Ye   +5 more
core   +1 more source

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