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Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals

Epple, Bernhard (2006) Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals. In: Proceedings of SPIE -- Volume 6304, 630418-1-630418-10. SPIE Optical Press. Free-Space Laser Communications VI, 2006-08-15 - 2006-08-17, San Diego, California, USA. ISBN 0-8194-6383-3 ISSN 0277-786X

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In the Capanina project, it has been shown that it is possible to use solely GPS positions for coarse-pointing of a stratospheric free-space optical communication terminal. Although this system design has been shown to be functional, it has to deal with acquisition and reacquisition times of up to 20 seconds. Whenever the line of sight is blocked, the Capanina terminal has to do a reacquisition of the partner terminal. In land-mobile systems, e.g. transmission between a moving vehicle and a fixed station, where objects like trees or buildings can frequently block the line of sight, this type of acquisition/reacquisition is not acceptable. In this paper a revised system design will be shown, which reduces the initial acquisition time to below a second by using information from a GPS-Aided Inertial System (GPS-INS). It will also be shown how reacquisition times and coarse-pointing errors can be reduced to a minimum by using feedback from the optical fine-pointing device. Finally a demonstrator setup and some test results will be presented.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Using a GPS-Aided Inertial System for Coarse-Pointing of Free-Space Optical Communication Terminals
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iD
Datum:August 2006
Erschienen in:Proceedings of SPIE -- Volume 6304
Referierte Publikation:Ja
In Open Access:Nein
In ISI Web of Science:Nein
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
SPIE-The International Society for Optical Engineering, NICHT SPEZIFIZIERT
Verlag:SPIE Optical Press
Stichwörter:GPS, INS, PAT, AHRS, pointing, acquisition and tracking, KNOCGOP
Veranstaltungstitel:Free-Space Laser Communications VI
Veranstaltungsort:San Diego, California, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2006-08-15 - 2006-08-17
Veranstalter :SPIE
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W KN - Kommunikation/Navigation
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W KN - Kommunikation/Navigation
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Multimedia Satellitennetze (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Kommunikation und Navigation > Digitale Netze
Hinterlegt von: Moll, Florian
Hinterlegt am:06 Aug 2007
Letzte Änderung:12 Dez 2013 20:26

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