Zobrazeno 1 - 10
of 1 115
pro vyhledávání: '"low earth orbit (LEO)"'
Autor:
Elena S. Lohan, Kaan Celikbilek
Publikováno v:
Proceedings of the XXth Conference of Open Innovations Association FRUCT, Vol 36, Iss 1, Pp 353-360 (2024)
Low Earth Orbit Positioning, Navigation and Timing (LEO-PNT) is an emerging paradigm in wireless navigation community, aiming at systems that both complement the existing Global Navigation Satellite Systems (GNSS) and can act as alternative global po
Externí odkaz:
https://doaj.org/article/36df927a83384842bb6da23018663b8c
Publikováno v:
JES: Journal of Engineering Sciences, Vol 52, Iss 5, Pp 73-87 (2024)
In recent years, there has been significant interest in the deployment of Low Earth Orbit (LEO) satellite constellations as a potential solution to provide broadband internet access to remote regions [1]. One such constellation, Starlink, run by Spac
Externí odkaz:
https://doaj.org/article/632102f3342349439f36cf5cdf06c5bf
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
In May 2024 the strongest geomagnetic storm since the Halloween storms of 2003 occurred. Media reported worldwide about the space weather situation and its effects on the infrastructure. Of particular interest were reports claiming severe effects on
Externí odkaz:
https://doaj.org/article/daa36757edde40db97f0c7d8bd8a30b6
Autor:
Zhenghao Zhang
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2024, Iss 1, Pp 1-25 (2024)
Abstract Low Earth Orbit (LEO) satellite networks provide global data service coverage and has become increasingly popular. Uncoordinated access channels reduce data latency in LEO networks by allowing user terminals to transmit data packets at rando
Externí odkaz:
https://doaj.org/article/a3da1032c3a8403b8c4815647fdfd557
Publikováno v:
IEEE Access, Vol 12, Pp 184909-184928 (2024)
Satellite communications (SatComs) are expected to provide global Internet access. Low Earth orbit (LEO) satellites (SATs) have the advantage of providing a higher downlink capacity due to their smaller link budget compared with medium Earth orbit (M
Externí odkaz:
https://doaj.org/article/66c973d4bc7042efaa75af6eb61de4df
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 8875-8887 (2024)
Dawn and dusk land surface temperature (LST) is important for constructing subdaily LSTs and understanding diurnal temperature cycles. In this study, a dawn–dusk LST was developed using the medium-resolution spectral imager-low-light (MERSI-LL) ins
Externí odkaz:
https://doaj.org/article/4a1f8604593747a48a38fedbb210b52d
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 1624-1638 (2024)
In this paper, the problem of joint unmanned aerial vehicle (UAV) trajectory planning and low-orbit satellites (LEO-Sats) selection in space-air-ground integrated networks (SAGIN) will be investigated. This problem is of utmost importance when SAGIN
Externí odkaz:
https://doaj.org/article/d70bceb407094b278cff9ccac7f22537
Autor:
Felipe Augusto Tondo, Mohammad Afhamisis, Samuel Montejo-Sanchez, Onel Luis Alcaraz Lopez, Maria Rita Palattella, Richard Demo Souza
Publikováno v:
IEEE Access, Vol 12, Pp 30627-30637 (2024)
The exponential growth of Internet of Things (IoT) applications led to the deployment of IoT devices in remote areas beyond the reach of terrestrial networks, calling for satellite network solutions. Indeed, Low-Earth Orbit (LEO) satellites can provi
Externí odkaz:
https://doaj.org/article/899cf0b9640d4aecb2d38d682bfd196e
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 4705-4715 (2024)
With the fast development of low earth orbit (LEO) enhanced global navigation satellite system (LeGNSS), there is huge demand in LEO real-time precise orbit determination. Real-time service from international GNSS service (IGS) provides the real-time
Externí odkaz:
https://doaj.org/article/352aa54c6fc943a0ab686d1f203f2db5
Publikováno v:
IEEE Access, Vol 12, Pp 17773-17781 (2024)
This paper presents the design and implementation of an X-band horn antenna, which operates over a frequency range of 7 – 9 GHz for small satellite communication systems in Low Earth Orbit (LEO), employing metamaterials and 3D printing technology.
Externí odkaz:
https://doaj.org/article/b38bf3759ab44a44abb1c52f00470001