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SYSTEM ASPECTS OF OPTICAL LEO-TO-GROUND LINKS

Giggenbach, Dirk and Shrestha, Amita and Fuchs, Christian and Schmidt, Christopher and Moll, Florian (2016) SYSTEM ASPECTS OF OPTICAL LEO-TO-GROUND LINKS. In: ICSO Proceedings. International Conference on Space Optics, 18-21 Okt. 2016, Biarritz.

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Official URL: http://www.icsoproceedings.org/

Abstract

Optical Direct-to-Ground data links for earth-observation satellites will offer channel rates of several Gbps, together with low transmit powers and small terminal mass and also rather small ground receiver antennas. The avoidance of any signal spectrum limitation issues might be the most important advantage versus classical RF-technology. The effects of optical atmospheric signal attenuation, and the fast signal fluctuations induced by atmospheric index-of-refraction turbulence and sporadic miss-pointing-fading, require the use of adaptive signal formats together with fading mitigation techniques. We describe the typical downlink scenario, introduce the four different modes of data rate variation, and evaluate different methods of rate-adaptive modulation formats and repetition coding techniques.

Item URL in elib:https://elib.dlr.de/107778/
Document Type:Conference or Workshop Item (Poster)
Title:SYSTEM ASPECTS OF OPTICAL LEO-TO-GROUND LINKS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Giggenbach, DirkDirk.Giggenbach (at) dlr.deUNSPECIFIED
Shrestha, AmitaAmita.Shrestha (at) dlr.deUNSPECIFIED
Fuchs, ChristianChristian.Fuchs (at) dlr.deUNSPECIFIED
Schmidt, ChristopherChristopher.Schmidt (at) dlr.deUNSPECIFIED
Moll, FlorianFlorian.Moll (at) dlr.deUNSPECIFIED
Date:21 October 2016
Journal or Publication Title:ICSO Proceedings
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:ICSO Proceedings
Status:Published
Keywords:Optical LEO Downlinks, CCSDS, data-formats, variable link-budget KNOCGOP
Event Title:International Conference on Space Optics
Event Location:Biarritz
Event Type:international Conference
Event Dates:18-21 Okt. 2016
Organizer:CNES und ESA
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 - Vorhaben Multimedia Satellitennetze
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Giggenbach, Dr.-Ing. Dirk
Deposited On:14 Nov 2016 16:29
Last Modified:31 Jul 2019 20:04

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