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Measurements at a 61 km near-ground optical transmission channel

Giggenbach, Dirk and David, Florian and Landrock, Rainer and Pribil, Klaus and Fischer, Edgar and Buschner, Robert and Blaschke, Detlef (2002) Measurements at a 61 km near-ground optical transmission channel. In: Free-Space Laser Communication Technologies XIV, Vol. 4, pp. 162-170. SPIE-The International Society for Optical Engineering. Free-Space Laser Communication Technologies XIV, San Jose Cal., 19-25 Jan. 2002, San Jose, California, USA. ISBN 0-8194-4374-3.

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Abstract

An optical ground-to-ground direct-detection transmission experiment over 61km is being performed by the German Aerospace Center (DLR) in cooperation with the European Aeronautic Defence and Space Company (EADS) and Contraves Space AG, Switzerland. Transmission direction is from the mountain Wallberg in the German Alps down to Oberpfaffenhofen (west of Munich). This beam path suffers strongly from optical turbulence especially at the near-ground part along the last kilometers before the receiver. This causes a very demanding situation regarding received-power scintillations. Transmit power from one data source is 1W at 980nm. Of special interest is the effect of secondary transmitter apertures with 4m lateral offset to the first. Under strong turbulence conditions this provides statistically independent speckle patterns at the receiver thus improving system performance dramatically. This paper presents measurements at the transmission channel, with emphasise on statistical parameters of the scintillations and angle-of-arrival variations with one and two transmitter sources.

Document Type:Conference or Workshop Item (Paper)
Additional Information:LIDO-Berichtsjahr=2002,
Title:Measurements at a 61 km near-ground optical transmission channel
Authors:
AuthorsInstitution or Email of Authors
Giggenbach, DirkUNSPECIFIED
David, FlorianUNSPECIFIED
Landrock, RainerUNSPECIFIED
Pribil, KlausContraves Space AG, Switzerland
Fischer, EdgarContraves Space AG, Switzerland
Buschner, RobertContraves Space AG, Switzerland
Blaschke, Detlef(EADS Military Aircraft, Germany
Date:2002
Journal or Publication Title:Free-Space Laser Communication Technologies XIV
Refereed publication:Yes
In ISI Web of Science:No
Volume:Vol. 4
Page Range:pp. 162-170
Editors:
EditorsEmail
Mechele, G. StephenUNSPECIFIED
Publisher:SPIE-The International Society for Optical Engineering
Series Name:Proceedings of SPIE
ISBN:0-8194-4374-3
Status:Published
Keywords:Atmoepheric Scintillations, Optical Direct Detection, Ground-to-Ground Link, Multiple Transmitter Apertures, KNOCGOP
Event Title:Free-Space Laser Communication Technologies XIV, San Jose Cal., 19-25 Jan. 2002
Event Location:San Jose, California, USA
Event Type:international Conference
Organizer:SPIE
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben Multimedia Satellitennetze (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Dr.-Ing. Dirk Giggenbach
Deposited On:10 Aug 2006
Last Modified:12 Dec 2013 19:57

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