Results 21 to 30 of about 12,224 (294)

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

Study on remote sensing satellites random access to internet constellation and on-orbit intelligent processing

open access: yesDianxin kexue, 2022
The low earth orbit (LEO) satellite Internet constellation is a hot spot in current global research.And it is highly anticipated that the LEO satellite Internet constellation supports random access to remote sensing satellites and direct on-orbit ...
Xiaoyu CHANG   +5 more
doaj   +2 more sources

Design of Mega-Constellations for Global Uniform Coverage with Inter-Satellite Links

open access: yesAerospace, 2022
Constellation configuration design is a prerequisite and critical step in the construction of a mega-constellation system in low Earth orbit. However, the huge number of satellites and the intricate changes in relative positions among them make the ...
Lu Jia   +3 more
doaj   +1 more source

Modelica-Based Modeling on LEO Satellite Constellation

open access: yes, 2021
The new generation of LEO (Low Earth Orbit) communication satellite constellations have the advantages of low latency, strong signals, and global coverage. In order to achieve global coverage, the LEO satellite constellations are often very large, with a
Chan, Liu   +9 more
core   +1 more source

Single-Satellite Integrated Navigation Algorithm Based on Broadband LEO Constellation Communication Links

open access: yes, 2021
With the rapid development of satellite technology and the need to satisfy the increasing demand for location-based services, in challenging environments such as indoors, forests, and canyons, there is an urgent need to improve the position accuracy in ...
Lvyang Ye   +5 more
core   +1 more source

Application Status and Analysis of Starlink Constellation

open access: yes天地一体化信息网络, 2023
Starlink, asatellite broadband constellation operated by SpaceX, is currently the most influential and promising LEO broadband satellite constellation.With the expansion of the constellation deployment, its high-frequency launch and batch deployment of ...
Yu WANG   +6 more
doaj   +2 more sources

A Web-Based Prototype System for Deforestation Detection on High-Resolution Remote Sensing Imagery With Deep Learning

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Forests are the largest carbon storage and carbon sinks on land and are closely related to global climate change. Using remote sensing images to monitor global deforestation has become the mainstream method, mainly because of their long time-series ...
Zhipan Wang   +6 more
doaj   +1 more source

A delay model for satellite constellation networks with inter-satellite links

open access: yes, 2009
Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC).
Romain Hermenier   +5 more
core   +1 more source

A novel design on multi-layer satellite constellation network

open access: yes上海师范大学学报. 自然科学版, 2016
With the increasing demand of space technology,the traditional single layer satellite constellation network is restricted in the development of future space technology because of its simple structure.For this reason,more and more researchers have carried
LI Lianqiang   +4 more
doaj   +1 more source

GaliLEO: A Simulation Tool for LEO Satellite Constellations [PDF]

open access: yesSIMULATION, 2002
The authors present GaliLEO, a simulator for the transmission of connection-oriented traffic over a constellation of LEO/MEO (low/medium earth orbit) satellites. Its scope is limited to the satellites and the stations accessing them, without any modelling of the terrestrial network, but inside this scope the goal is to study the performance of ...
Potorti' F., Franck L.
openaire   +5 more sources

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