Performance Analysis and Implementation of Spatial and Blind Beamforming Algorithms for Tracking LEO Satellites with Adaptive Antenna Arrays

Konferenz: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
23.03.2009 - 27.03.2009 in Berlin, Germany

Tagungsband: EuCAP 2009

Seiten: 5Sprache: EnglischTyp: PDF

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Antón, Alberto; Martínez, Ramón; Salas, Miguel A. (Radiation Group (GR), SSR Department, Universidad Politécnica de Madrid, ETSI Telecomunicación, Ciudad Universitaria, s/n, 28040, Madrid, SPAIN)
Torre, Alberto (Ingeniería y Servicios Aeroespaciales, S.A. (INSA), Madrid, SPAIN)

Nowadays, earth stations for downloading data from LEO (Low Earth Orbit) satellites use large reflector antennas, which pose a number of impairments. In that context, antenna arraying techniques and smart antennas appear as an improvement in performance. This paper presents a comparative study of several beamforming algorithms on a Test-Bed platform and ideas about the calibration and signal tracking topics. The overall structure is based upon a Software Defined Radio (SDR) receiver. For our simulations and measures we will consider the NOAA (National Oceanic and Atmospheric Administration) satellites and more specifically the APT (Automatic Picture Transmission) signal.