Results 11 to 20 of about 4,749,527 (270)

Four years operations of Inter-satellite and SpaceGround Optical links [PDF]

, 2018
During the past four years, the laser communication terminal on board of Alphasat GEO-stationary satellite has achieved the successful execution of more than 1300 optical links which implies more than 24.000 tasks for the planning system. This laser terminal in combination with a Ka-Band system constitutes the TDP1 technology demonstrator ...
Pimentel, Patricia, Hoepke, Nils, Seiter, Christoph, Saucke, Karen, Heine, Frank F., Motzigemba, Matthias, Martin, Siegbert, Benzi, Edoardo, Rossmanith, Gregor Johannes, Kuhlmann, Sven, Lutzer, Michael, Meyer, Rolf   +11 more
openaire   +3 more sources

Comprehensive Optical Inter-Satellite Communication Model for Low Earth Orbit Constellations: Analyzing Transmission Power Requirements

Photonics
Free-space optical communications have emerged as a powerful solution for inter-satellite links, playing a crucial role in next-generation satellite networks.
Michail Gioulis, Thomas Kamalakis, Dimitris Alexandropoulos   +2 more
doaj   +2 more sources

Autonomous Synchronization of Satellite Constellations via Optical Inter-Satellite Links

2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 2023
In this paper we present an on-board clock steering scheme for achieving tight synchronization of constellations interconnected with optical inter-satellite links.
Trainotti, Christian, Dassie, Manuele, Giorgi, Gabriele, Khodabandeh, Amir, Günther, Christoph   +4 more
openaire   +2 more sources

RF-Assisted Compensation for Rapid Optical Acquisition in Hybrid Inter-Satellite Links

IEEE Open Journal of the Communications Society
Establishing Optical Inter-Satellite Links (O-ISLs) requires sub-degree pointing accuracy between fast-moving satellites, a challenge resulting from actuator limitations and positioning uncertainties.
Elena Fernandez-Nino, Juan A. Fraire, Adriano Camps, Joan A. Ruiz-de-Azua   +3 more
doaj   +4 more sources

Neuromorphic Split Computing via Optical Inter-Satellite Links

We present a neuromorphic split-computing framework for energy-efficient low-latency inference over optical inter-satellite links. The system partitions a spiking neural network (SNN) between edge and core nodes. To transmit sparse spiking features efficiently, we introduce a lossless channel-block-sparse event representation that exploits inter- and ...
Song, Zihang, Popovski, Petar; id_orcid 0000-0001-6195-4797   +1 more
openaire   +3 more sources

Operational Simulation of Optical Inter-Satellite Links in LEO Constellations [PDF]

Paper ID ...
Pizzuto, Luca
openaire   +4 more sources

Terabyte capacity-enabled (10 x 400 Gbps) Is-OWC system for long-haul communication by incorporating dual polarization quadrature phase shift key and mode division multiplexing scheme.

PLoS ONE, 2022
Inter-satellite optical wireless communication (Is-OWC) links can become promising solutions to realize the next-generation high-speed communication services.
Sushank Chaudhary, Lunchakorn Wuttisittikulkij, Jamel Nebhen, Abhishek Sharma, Demostenes Zegarra Rodriguez, Santosh Kumar   +5 more
doaj   +2 more sources

Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite

Journal of Astronomy and Space Sciences, 2020
Satellite optical communication has gained significant attention owing to its many quality features (e.g., a larger bandwidth, license free spectrum, higher data rate, and better security) compared to satellite microwave communication.
Hyung-Chul Lim, Jong Uk Park, Mansoo Choi, Chul-Sung Choi, Jae-Dong Choi, Jongah Kim   +5 more
doaj   +1 more source

Acquisition Time in Laser Inter-Satellite Link Under Satellite Vibrations

IEEE Photonics Journal, 2023
Pointing, acquisition, and tracking (PAT) is a major technical challenge of laser inter-satellite links (ISLs). For the fast establishment of laser link and the maximization of communication time, it is of importance to minimize the acquisition time ...
Kwanyong Lee, Vuong Mai, Hoon Kim
doaj   +1 more source

Dynamic Network Formation for FSO Satellite Communication

Applied Sciences, 2022
Satellite network optimization is essential, particularly since the cost of manufacturing, launching and maintaining each satellite is significant. Moreover, classical communication optimization methods, such as Minimal Spanning Tree, cannot be applied ...
Revital Marbel, Roi Yozevitch, Tal Grinshpoun, Boaz Ben-Moshe   +3 more
doaj   +1 more source