Winterstein, Andreas und Greda, Lukasz (2017) An Adaptive Calibration and Beamforming Technique for a GEO Satellite Data Relay. International Journal of Satellite Communications and Networking, 36 (2), Seiten 207-219. Wiley. doi: 10.1002/sat.1213. ISSN 1542-0973.
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Offizielle URL: http://dx.doi.org/10.1002/sat.1213
Kurzfassung
High throughput data links from low earth orbit (LEO) satellites through a geostationary orbit (GEO) satellite data relay have been proposed to increase the available contact times to ground stations. Exact antenna beam pointing and tracking of moving targets are thereby key requirements for the relay satellite. In this work we propose an adaptive calibration and beamforming methodology based on least mean squares (LMS) which is suitable for a GEO data relais. The target System consists of the combination of a high gain reflector fed by a digitally steerable patch antenna array. The proposed method is first presented by numerical co-simulation of the antenna and the calibration algorithm. The results are then validated in an outdoor experimental setup with all digital signal processing implemented in a field-programmable gate array (FPGA). We demonstrate the tracking ability and pointing performance of the digitally enhanced reflector antenna with gain fluctuations smaller than 3 dB over a field of view of 2.9°. The demonstrated performance shows that the digitally enhanced reflector antenna is a suitable candidate for long distance space communications.
elib-URL des Eintrags: | https://elib.dlr.de/119441/ | ||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||
Titel: | An Adaptive Calibration and Beamforming Technique for a GEO Satellite Data Relay | ||||||||||||
Autoren: |
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Datum: | 23 Mai 2017 | ||||||||||||
Erschienen in: | International Journal of Satellite Communications and Networking | ||||||||||||
Referierte Publikation: | Ja | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Ja | ||||||||||||
In ISI Web of Science: | Ja | ||||||||||||
Band: | 36 | ||||||||||||
DOI: | 10.1002/sat.1213 | ||||||||||||
Seitenbereich: | Seiten 207-219 | ||||||||||||
Verlag: | Wiley | ||||||||||||
ISSN: | 1542-0973 | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | Satellite communication, calibration, least mean squares, adaptive beamforming, FPGA, reflector antenna | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||
HGF - Programmthema: | Kommunikation und Navigation | ||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||
DLR - Forschungsgebiet: | R KN - Kommunikation und Navigation | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben Multimedia Satellitennetze (alt) | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Institut für Kommunikation und Navigation > Navigation | ||||||||||||
Hinterlegt von: | Winterstein, Dr.-Ing. Andreas | ||||||||||||
Hinterlegt am: | 21 Mär 2018 13:49 | ||||||||||||
Letzte Änderung: | 02 Nov 2023 14:40 |
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