Results 11 to 20 of about 1,304 (240)

Research on hierarchical and sub‐area network control technology of LEO giant constellation

open access: yesIET Communications
The low‐earth‐orbit (LEO) telecommunication constellation network is foreseen as a merging interconnection method for future sixth‐generation (6G) systems.
Ci He, Yasheng Zhang, Yuejun Yu, Cong Li
doaj   +2 more sources

The Design and Maintenance of Low-Orbit Navigation Constellation for Traffic Control in a Smart City

open access: yesSensors, 2022
The traffic control issue in the smart city scenario gives rise to the higher requirements of Global Navigation Satellite System (GNSS) services, especially in terms of navigation accuracy, together with coverage continuity, and multiplicity.
Yi Zheng, Baojun Lin, Rui Li, Yutong Liu
doaj   +2 more sources

LEO mega-constellation network:networking technologies and state of the art [PDF]

open access: yesTongxin xuebao, 2022
The emerging low earth orbit (LEO) mega-constellation network (MCN) represented by Starlink and OneWeb were studied.The system architecture and basic working modes were introduced, and the main features of the emerging broadband MCN were summarized.Based
Quan CHEN   +5 more
doaj   +4 more sources

Optimal design of the long-term LEO almanac by considering the atmosphere drag effects

open access: yesGeo-spatial Information Science
Almanac is an elegant design to help Global Navigation Satellite Systems (GNSS) signal acquisition, which has been adopted by all global satellite navigation systems. For the future low Earth orbit (LEO) navigation constellation, the almanac will be more
Xueli Guo, Lei Wang, You Li
doaj   +2 more sources

LEO satellite constellation design with multi-QoS guarantee for non-terrestrial network [PDF]

open access: yesTongxin xuebao, 2023
LEO satellite constellation (LSC) offers seamless and fast connectivity for non-terrestrial network (NTN).However, the lack of QoS guarantees for users significantly impacts the performance of the NTN system.Considering multi-QoS metrics, a capacity and ...
Ruyan WANG   +5 more
doaj   +4 more sources

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   +2 more sources

Autonomous Orbit Determination for a Hybrid Constellation

open access: yesInternational Journal of Aerospace Engineering, 2018
A new orbit determination scheme targeting communication and remote sensing satellites in a hybrid constellation is investigated in this paper. We first design one such hybrid constellation with a two-layer configuration (LEO/MEO) by optimizing coverage ...
Muzi Li, Bo Xu, Jun Sun
doaj   +2 more sources

Efficient Topology Design for LEO Mega-Constellation Using Topological Structure Units with Heterogeneous ISLs. [PDF]

open access: yesSensors (Basel)
With the maturation of reusable launch vehicle technology and satellite mass-production capabilities, global mega-constellation projects have entered a phase of rapid expansion.
Zhang W, Wu T, Yan X, Li G, Ma H.
europepmc   +2 more sources

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

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

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