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Optical Communication from HAPs - Overview of the Stratospheric Optical Payload Experiment (STROPEX)

Horwath, Joachim und Grace, David und Giggenbach, Dirk und Knapek, Markus und Perlot, Nicolas (2004) Optical Communication from HAPs - Overview of the Stratospheric Optical Payload Experiment (STROPEX). In: Proceedings ICSSC 2004. 22nd AIAA International Communications Satellite Systems Conference & Exhibit 2004 (ICSSC), Monterey, CA, May 9-12, 2004, Monterey, CA.

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Kurzfassung

This paper describes the STRatospheric OPtical Downlink EXperiment (STROPEX) which is part of a large European Union funded research project called “CAPANINA” (Communications from Aerial Platform Networks delivering Broadband Communications for All). The aim of STROPEX is to demonstrate a high-bitrate optical downlink from a stratospheric balloon or High Altitude Platform and perform measurements on the optical channel. At first, an overview of the CAPANINA project is given. Then the system approaches for the optical trials are presented. Atmospheric attenuation effects on optical waves are described and calculation results of total attenuation for the downlink and used wavelengths are presented. Index-of-refraction effects and their impact on the intensity distribution at the receiver are introduced. The spatial covariance function, the probability density functions (PDF), derived from numerical simulations are discussed for two different turbulence conditions. In the last part, instruments to measure atmospheric parameters are described. These instruments are used to characterize the optical atmospheric channel during the campaigns. The first instrument measures the deterioration of the beam wavefront caused by atmospheric turbulence. The second instrument is a real-time turbulence profiler. The atmospheric turbulent layers are derived from measurements of the spatial distribution of the intensity at the receiver. A brief introduction to the working principles of these two instruments and the favored approach for STROPEX is given.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=2004, monograph_id=AIAA-2004-3218,
Titel:Optical Communication from HAPs - Overview of the Stratospheric Optical Payload Experiment (STROPEX)
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Horwath, JoachimNICHT SPEZIFIZIERT
Grace, DavidUniversity of York, Heslington, Great Britain
Giggenbach, DirkNICHT SPEZIFIZIERT
Knapek, MarkusNICHT SPEZIFIZIERT
Perlot, NicolasNICHT SPEZIFIZIERT
Datum:2004
Erschienen in:Proceedings ICSSC 2004
Referierte Publikation:Ja
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Optical Communication, HAP, STROPEX, KNOCGOP
Veranstaltungstitel:22nd AIAA International Communications Satellite Systems Conference & Exhibit 2004 (ICSSC), Monterey, CA, May 9-12, 2004
Veranstaltungsort:Monterey, CA
Veranstaltungsart:internationale Konferenz
Veranstalter :American Institute of Aeronautics and Astronautics (AIAA)
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: Dr.-Ing. Dirk Giggenbach
Hinterlegt am:10 Aug 2006
Letzte Änderung:06 Jan 2010 21:31

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