Results 21 to 30 of about 6,166,267 (187)
Investigation of the effects of cloud attenuation on satellite communication systems [PDF]
, 2012 The aim of this project is to investigate the attenuation due to clouds at 20- 50GHz; to develop an accurate long-term prediction model of cloud attenuation applicable to slant-path links and evaluate the impact of cloud attenuation dynamics on the ...
Alawadi, Tareq A.
core +7 more sources
Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]
, 2011 In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste +9 more
core +1 more source
IP-Level Satellite Link Emulation with KauNet [PDF]
, 2009 Distributed applications and transport protocols communicating over a satellite link may react very strongly to conditions specific to that kind of link.
Garcia, Johan, +12 more
core +1 more source
MOBILE OPTICAL HIGH-SPEED DATA LINKS WITH SMALL TERMINALS [PDF]
, 2009 Mobile Optical Free-Space Communication (MFSO) downlinks from observation platforms in low earth orbit or in the atmosphere will allow nearly undetectable high-speed data links with small and low-power laser communication terminals.
Giggenbach, Dirk, D. Giggenbach
core +1 more source
Pico-Sat to Ground Control: Optimizing Download Link via Laser Communication
Remote Sensing, 2022 Consider a constellation of over a hundred low Earth orbit satellites that aim to capture every point on Earth at least once a day. Clearly, there is a need to download from each satellite a large set of high-quality images on a daily basis.
Revital Marbel +2 more
doaj +1 more source
Satellite Quantum Communication via the Alphasat Laser Communication Terminal
CoRR, 2015 By harnessing quantum effects, we nowadays can use encryption that is in principle proven to withstand any conceivable attack. These fascinating quantum features have been implemented in metropolitan quantum networks around the world. In order to interconnect such networks over long distances, optical satellite communication is the method of choice ...
Dominique Elser +14 more
openaire +3 more sources
Simulation of laser-driven cratering experiments on aluminum [PDF]
, 2019 After a brief description of the physical principles involved in the cratering process, the authors present a specific methodology to simulate laser-driven cratering experiments performed with a long pulse duration (100 ns) and a small focal spot ...
Jean-Luc Rullier +11 more
core +1 more source
Research on Application Technology of Satellite Laser Network
Guangtongxin yanjiu, 2023 With the rapid development of satellite internet, the shortage of bandwidth and spectrum resources has become increasingly prominent.Satellite laser communication has the characteristics of large bandwidth and no spectrum constraints, which makes it an ...
ZHANG De-peng, YU Yan, WANG Yue
doaj
Spaceborne Optical Switching Technology for Satellite Internet
天地一体化信息网络, 2022 With the increasing demands for ultra-high speed and large-capacity information transmission such as satellite remote sensing, big data super computing center, video battlefield and 6G mobile communication.The satellite laser communication technology ...
Jiacheng MENG +7 more
doaj +2 more sources
Vulnerability of Satellite Quantum Key Distribution to Disruption from Ground-Based Lasers
Sensors, 2021 Satellite-mediated quantum key distribution (QKD) is set to become a critical technology for quantum-secure communication over long distances. While satellite QKD cannot be effectively eavesdropped, we show it can be disrupted (or ‘jammed’) with ...
David R. Gozzard +2 more
doaj +1 more source