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Optical on-off keying data links for low Earth orbit downlink applications

Giggenbach, Dirk and Moll, Florian and Schmidt, Christopher and Fuchs, Christian and Shrestha, Amita (2018) Optical on-off keying data links for low Earth orbit downlink applications. In: Satellite Communications in the 5G Era IET TELECOMMUNICATIONS SERIES, 79. The Institution of Engineering and Technology. pp. 307-339. ISBN 978-1-78561-427-9.

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Official URL: https://www.theiet.org/resources/books/telecom/sat-com-5g.cfm

Abstract

As Optical Low Earth Orbit Downlinks (OLEODL) serve for sensor data download from earth observation satellites, their link scenario is strongly asymmetric, since the data flow is mostly simplex or at least the downlink datarate (DR) is orders of magnitude higher than the uplink (the later may only serve for tele-command and link protection). Therefore, the antenna gain can be distributed favourably: with small and lightweight transmitters in space and correspondingly moderately sized antennas (i.e., receiver telescope apertures) on the ground. The disturbing atmosphere only affects the lower end of the link close to the receiving ground station, which on the one hand allows for simple techniques for link stabilisation by aperture averaging but on the other hand complicates some of the advanced modulation and detection formats, since these may require ophisticated techniques like adaptive optics for coupling into single-mode fibres. Therefore, data format options for OLEODL focus mainly on rather low complex and robust direct detection (DD) techniques.

Item URL in elib:https://elib.dlr.de/122587/
Document Type:Book Section
Title:Optical on-off keying data links for low Earth orbit downlink applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Giggenbach, DirkDirk.Giggenbach (at) dlr.deUNSPECIFIED
Moll, FlorianFlorian.Moll (at) dlr.deUNSPECIFIED
Schmidt, ChristopherChristopher.Schmidt (at) dlr.deUNSPECIFIED
Fuchs, ChristianChristian.Fuchs (at) dlr.deUNSPECIFIED
Shrestha, AmitaAmita.Shrestha (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:Satellite Communications in the 5G Era
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:79
Page Range:pp. 307-339
Editors:
EditorsEmail
Krishna Sharma, ShreeUNSPECIFIED
Chatzinotas, SymeonUNSPECIFIED
Arapoglou, Pantelis-DanielUNSPECIFIED
Publisher:The Institution of Engineering and Technology
Series Name:IET TELECOMMUNICATIONS SERIES
ISBN:978-1-78561-427-9
Status:Published
Keywords:Optical On-Off Keying Optical LEO Satellite Data Downlinks Free-Space Optical Communications Atmospheric Transmission Channel KNOCGOP
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Projekt PROSIRIS
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Giggenbach, Dr.-Ing. Dirk
Deposited On:07 Nov 2018 12:23
Last Modified:31 Jul 2019 20:20

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