Signal processing aspects of the low frequency array

André W. Gunst, Marinus Jan Bentum

    Research output: Contribution to conferencePaperAcademicpeer-review

    16 Citations (Scopus)

    Abstract

    In the Northern part of the Netherlands ASTRON is building the largest radio telescope in the world for low frequencies. The telescope is based on phased array principles and is known as the LOw Frequency ARray (LOFAR). LOFAR is optimized for detecting astronomical signals in the 30-80 MHz and 120-240 MHz frequency window. LOFAR detects the incoming radio signals by using an array of simple omni-directional antennas. The antennas are grouped in so called stations mainly to reduce the amount of data generated. More than fifty stations will be built, mainly within a circle of 150 kilometres in diameter but also internationally. The signals of all the stations are distributed to the central processor facility, where all the station signals are correlated with each other. In this paper the signal processing aspects on system level will be presented mainly for the astronomical application.
    Original languageUndefined
    Pages600-603
    Number of pages4
    DOIs
    Publication statusPublished - 25 Nov 2007
    EventIEEE International Conference on Signal Processing and Communications, ICSPC 2007 - Park Hyatt Hotel, Dubai, United Arab Emirates
    Duration: 24 Nov 200727 Nov 2007

    Conference

    ConferenceIEEE International Conference on Signal Processing and Communications, ICSPC 2007
    Abbreviated titleICSPC
    CountryUnited Arab Emirates
    CityDubai
    Period24/11/0727/11/07

    Keywords

    • data transport
    • Phased array
    • EWI-20017
    • Radio astronomy
    • IR-76700
    • correlator
    • digital dots arestations processing

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