Zobrazeno 1 - 10
of 420
pro vyhledávání: '"Low Earth orbit satellite"'
Autor:
Chao Xiong, Fengjue Wang, Yuyang Huang, bohao Qian, Simin Wang, Xinyi Rang, Sishan Song, Yunliang Zhou, Fan Yin
Publikováno v:
地球与行星物理论评, Vol 56, Iss 1, Pp 45-66 (2025)
With the development of satellite technology, low-orbit satellites equipped with high-resolution magnetometers have become an important tool for measuring the Earth's magnetic field, which provides continuous observations around the world regardless
Externí odkaz:
https://doaj.org/article/d702b8db3b4946d98723d33d03f5bc5f
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract In case of mitigate the reliance of aviation users on the Global Navigation Satellite System (GNSS) in an increasingly interference-prone environment, utilizing opportunistic signals from Low-Earth Orbit (LEO) for navigation and positioning
Externí odkaz:
https://doaj.org/article/11bc26fd96b04bf08ac1e8da7b89aec3
Publikováno v:
Tongxin xuebao, Vol 45, Pp 48-60 (2024)
Aiming at the offloading requirements of ground users’ computing tasks in edge computing scenario of low earth orbit (LEO) satellites, a joint offloading and resource allocation optimization (JORAO) algorithm was proposed. Considering the limited c
Externí odkaz:
https://doaj.org/article/2eff7fdbd814424ab519fac22338d7c7
Publikováno v:
Tongxin xuebao, Vol 45, Pp 10-20 (2024)
In low earth orbit (LEO) satellite constellations, when earth-fixed footprint mode is used, the switching of beams between coverage regions affects the elevation angle of the coverage, which in turn affects the communication quality. A coverage regio
Externí odkaz:
https://doaj.org/article/7dff56cf261b4996b94656c196dc1beb
Publikováno v:
Dianxin kexue, Vol 40, Pp 60-68 (2024)
As the rapid deployment of low earth orbit (LEO) mega-constellations and the swift growth of satellite Internet unfolds, distributed satellite systems composed of a large number of LEO satellites become a significant feature of the space-air-ground i
Externí odkaz:
https://doaj.org/article/a313020190844e06bce3d912e893e6f4
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 3, Pp 706-715 (2024)
Low-Earth Orbit Satellite Constellations (LEO-SCs) provide global, high-speed, and low latency Internet access services, which bridges the digital divide in the remote areas. As inter-satellite links are not supported in initial deployment (i.e. the
Externí odkaz:
https://doaj.org/article/5b81bc940743468e80ff3470a88d2a4e
Publikováno v:
Tongxin xuebao, Vol 45, Pp 131-141 (2024)
Understanding the influence of Doppler effect on the transmission performance of the Starlink system was an important prerequisite to decipher its unique physical layer structure.To this end, firstly a Doppler effect model considering relative motion
Externí odkaz:
https://doaj.org/article/6aad576417a84f71bc9c2a0f376dc90a
Publikováno v:
天地一体化信息网络, Vol 5, Pp 2-13 (2024)
With the continuous expansion of satellite constellation, this paper analyzed the characteristics of mega constellation, and summarized the capability requirements of routing algorithms for mega constellation from two aspects of networking transmissi
Externí odkaz:
https://doaj.org/article/9686549bf4b847858978c7b37539154a
Publikováno v:
天地一体化信息网络, Vol 4, Pp 88-98 (2023)
Low-earth orbit satellites have the advantages of wide bandwidth, low latency, and large coverage, making them very suitable as a supplement to ground cellular networks.Low-earth orbit satellites can meet the requirements of smart high-speed railway
Externí odkaz:
https://doaj.org/article/a8d455c2c37840e9ac05ac6f99517714
Publikováno v:
Tongxin xuebao, Vol 44, Pp 125-133 (2023)
In the low earth orbit (LEO) uplink communication scenario, aiming at the different needs of different users for high capacity transmission (HCT) and high reliability transmission (HRT), the spectrum of two users with different needs was shared, a re
Externí odkaz:
https://doaj.org/article/6dbfb2b836034216ad6a1c7ebdc6c880