Free-space optical links for space communication networks
TL;DR: In this paper, the basic principles and current trends of free-space optical communication (FSO) are described and compared to the traditional radio-frequency-based communication systems for space communication.
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Abstract: Future spacecraft will require a paradigm shift in the way the information is transmitted due to the continuous increase in the amount of data requiring space links. Current radiofrequency-based communication systems impose a bottleneck in the volume of data that can be transmitted back to Earth due to technological as well as regulatory reasons. Free-space optical communication has finally emerged as a key technology for solving the increasing bandwidth limitations for space communication while reducing the size, weight and power of satellite communication systems, and taking advantage of a license-free spectrum. In the last few years, many missions have demonstrated in orbit the fundamental principles of this technology proving to be ready for operational deployment, and we are now witnessing the emergence of an increasing number of projects oriented to exploit space laser communication (lasercom) in scientific and commercial applications. This chapter describes the basic principles and current trends of this new technology.
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Citations
Satellite-based quantum information networks: use cases, architecture, and roadmap
L. de Forges de Parny,Olivier Alibart,J. Debaud,Sacha Gressani,Alek Lagarrigue,Anthony Martin,Alexandre Metrat,Matteo Schiavon,Tess Troisi,Eleni Diamanti,Patrick Gelard,Erik Kerstel,Sébastien Tanzilli,Mathias van den Bossche +13 more
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Tbit/s line-rate satellite feeder links enabled by coherent modulation and full-adaptive optics
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Demonstration of a Real-Time 14 Tb/s Multi-Aperture Transmit Single-Aperture Receive FSO System With Class 1 Eye-Safe Transmit Intensity
Keisuke Matsuda,Masashi Binkai,Shota Koshikawa,Tsuyoshi Yoshida,Hayato Sano,Yoshiaki Konishi,Naoki Suzuki +6 more
TL;DR: In this article , the authors used a 9-aperture transmit, single-APerture receive FSO system to reduce the transmit power of a C-band transmitter to achieve a link budget capable of supporting high capacity free space optical communication.
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References
Exponentiated Weibull distribution family under aperture averaging for Gaussian beam waves
Ricardo Barrios,Federico Dios +1 more
TL;DR: It is shown how the proposed EW distribution offers an excellent fit to simulation and experimental data under all aperture averaging conditions, under weak and moderate turbulence conditions, as well as for point-like apertures.
Extra-Terrestrial Relays: Can Rocket Stations Give World-wide Radio Coverage?
TL;DR: This chapter discusses extra-terrestrial relays, and certain fundamental laws of rocket propulsion and astronautics are discussed.
185
LDACS: future aeronautical communications for air-traffic management
TL;DR: The most promisingLDACS technology candidate, LDACS1, is described in detail, and possible extensions toward navigation and surveillance are discussed, with special focus on the air/ground communications technology L-band Digital Aeronautical Communications System.
162
Evaluation of the performance of Hartmann sensors in strong scintillation
TL;DR: It is found that the performance of Hartmann sensors degrades severely when the Rytov number exceeds 0.2 and the ratio l/r0 exceeds 1/4 (where l is the subaperture side length) because of the presence of branch points in the phase function and the effect of amplitude scintillation on the measurement values produced by the Hartmann sensor.
156
A routing protocol for hierarchical LEO/MEO satellite IP networks
Chao Chen,Eylem Ekici +1 more
- 01 Jul 2005
TL;DR: A new Satellite Grouping and Routing Protocol (SGRP) is developed that divides Low Earth Orbit satellites into groups according to the footprint area of the Medium Earth Orbit (MEO) satellites and calculates minimum-delay paths for their LEO members.