Results 1 to 10 of about 913 (245)

LEO Satellite Constellation for Internet of Things

open access: yesIEEE Access, 2017
Internet of Things (IoT) is one of the evolutionary directions of the Internet. This paper focuses on the low earth orbit (LEO) satellite constellation-based IoT services for their irreplaceable functions.
Zhicheng Qu   +3 more
doaj   +4 more sources

Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

open access: yesSatellite Navigation, 2022
Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. Instead of using onboard Global Navigation Satellite System observations, this contribution treats the LEO satellite constellation independently, using Inter ...
Xingchi He   +4 more
doaj   +2 more sources

Research on Design and Staged Deployment of LEO Navigation Constellation for MEO Navigation Satellite Failure

open access: yesRemote Sensing
Low Earth orbit (LEO) satellites have unique advantages in navigation because of their high signal intensity and rapid geometric changes in a short period.
Wen Xue   +4 more
doaj   +3 more sources

Caching Policy in Low Earth Orbit Satellite Mega-Constellation Information-Centric Networking for Internet of Things [PDF]

open access: yesSensors
Information-Centric Networking (ICN) is the emerging next-generation internet paradigm. The Low Earth Orbit (LEO) satellite mega-constellation based on ICN can achieve seamless global coverage and provide excellent support for Internet of Things (IoT ...
Hongqiu Luo, Tingting Yan, Shengbo Hu
doaj   +2 more sources

Analytical design and performance analysis of LEO mega chain satellite constellation

open access: yesXibei Gongye Daxue Xuebao, 2022
With the development of microsatellite technology and the growth of ground reconnaissance demand, the rapid design of a LEO constellation with minimum satellite number, low revisit time (within 10 minutes), and permanent inter-satellite links has become ...
ZHENG Pengfei, CHEN Hongyu, GUO Chongbin
doaj   +1 more source

Study on Satellite Constellation Spare Strategy Based on Markov Process

open access: yesHangkong gongcheng jinzhan, 2022
In response to the issue of reducing satellite constellation backup costs while meeting constellation availability target,it is the hot issue in current research.In this paper,the impact of different spare strategies on the performance of a low earth ...
LUO Tiansu   +4 more
doaj   +1 more source

Optimal Progressive Pitch for OneWeb Constellation with Seamless Coverage

open access: yesSensors, 2022
Large-scale broadband low earth orbit (LEO) satellite systems have become a possibility due to decreased launch costs and rapidly evolving technology. Preventing huge LEO satellite constellations from interfering with the geostationary earth orbit (GSO ...
Cheng Zou   +5 more
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

Resource Allocation for LEO Beam-Hopping Satellites in a Spectrum Sharing Scenario

open access: yesIEEE Access, 2021
In recent years, low earth orbit (LEO) satellite constellation systems have been developed rapidly. However, the scarcity of satellite spectrum resources has become one of the major obstacles to this trend.
Jingyu Tang   +4 more
doaj   +1 more source

Low-Orbit Large-Scale Communication Satellite Constellation Configuration Performance Assessment

open access: yesInternational Journal of Aerospace Engineering, 2022
A constellation configuration performance evaluation method is proposed for the performance evaluation of the low-orbit large-scale communication satellite constellations.
Tianyu Sun, Min Hu, Chaoming Yun
doaj   +1 more source

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