Results 11 to 20 of about 67,113 (245)

Development Status and Trend of Space Optical Communication Technology

open access: yes天地一体化信息网络, 2022
Based on the laser inter-satellite communication link to realize information transmission between diff erent satellite nodes in satellite constellation, it can solve the problems of slow data rate and limited frequency resources in traditional satellite ...
Shaowen LU   +5 more
doaj   +2 more sources

Interference and Protection in Satellite Laser Communication

open access: yes天地一体化信息网络, 2023
In order to explore the safety protection technologies for various external interferences in satellite laser communication, four interference sources in the satellite laser communication link and their principles were introduced, included atmospheric ...
Chenzhe LAO, Jianfeng SUN
doaj   +2 more sources

On Some Critical Issues of the LAGEOS-Based Tests of the Lense-Thirring Effect [PDF]

open access: yes, 2010
We summarize some critical issues pertaining the tests of the general relativistic Lense-Thirring effect performed by I. Ciufolini and coworkers in the gravitational field of the Earth with the geodetic satellites LAGEOS and LAGEOS II tracked with the ...
Iorio, L.
core   +1 more source

Pico-Sat to Ground Control: Optimizing Download Link via Laser Communication

open access: yesRemote 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

Shipborne Acquisition, Tracking, and Pointing Experimental Verifications towards Satellite-to-Sea Laser Communication

open access: yesApplied Sciences, 2019
Acquisition, tracking, and pointing (ATP) is a key technology in free space laser communication that has a characteristically high precision. In this paper, we report the acquisition and tracking of low-Earth-orbit satellites using shipborne ATP and ...
Dong He   +14 more
doaj   +1 more source

Vulnerability of Satellite Quantum Key Distribution to Disruption from Ground-Based Lasers

open access: yesSensors, 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

Research on Application Technology of Satellite Laser Network

open access: yesGuangtongxin 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  

A Survey on Laser Space Network: Terminals, Links, and Architectures

open access: yesIEEE Access, 2022
Due to the high directionality and short wavelength of laser transmission in space, satellite laser communication can achieve high speed, wide bandwidth, high precision, and high security with no electromagnetic spectrum constraints.
Rui Li   +4 more
doaj   +1 more source

Spaceborne Optical Switching Technology for Satellite Internet

open access: yes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

Satellite-to-ground quantum communication using a 50-kg-class micro-satellite

open access: yes, 2017
Recent rapid growth in the number of satellite-constellation programs for remote sensing and communications, thanks to the availability of small-size and low-cost satellites, provides impetus for high capacity laser communication (lasercom) in space ...
Carrasco-Casado, Alberto   +5 more
core   +1 more source

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