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An Adaptive Calibration and Beamforming Technique for a GEO Satellite Data Relay

Winterstein, Andreas and Greda, Lukasz (2017) An Adaptive Calibration and Beamforming Technique for a GEO Satellite Data Relay. International Journal of Satellite Communications and Networking, 36 (2), pp. 207-219. Wiley. DOI: 10.1002/sat.1213 ISSN 1542-0973

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Official URL: http://dx.doi.org/10.1002/sat.1213

Abstract

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.

Item URL in elib:https://elib.dlr.de/119441/
Document Type:Article
Title:An Adaptive Calibration and Beamforming Technique for a GEO Satellite Data Relay
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Winterstein, AndreasIKNUNSPECIFIED
Greda, LukaszUNSPECIFIEDUNSPECIFIED
Date:23 May 2017
Journal or Publication Title:International Journal of Satellite Communications and Networking
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:36
DOI :10.1002/sat.1213
Page Range:pp. 207-219
Publisher:Wiley
ISSN:1542-0973
Status:Published
Keywords:Satellite communication, calibration, least mean squares, adaptive beamforming, FPGA, reflector antenna
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 > Navigation
Deposited By: Winterstein, Dipl.-Ing. Andreas
Deposited On:21 Mar 2018 13:49
Last Modified:21 Mar 2018 13:49

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