Proposed digital system combines digitized baseband samples of signals received by array of feeds in large Cassegrainian paraboloidal-dish antenna. Signals received by subantennas in focal-plane array of large dish antenna combined by system compensating in real time for distortions of wave fronts caused by mechanical distortions of antenna. Signal-combining system combines baseband output signals of receiver front ends according to complex weighting parameters estimated from signals themselves. Intended to compensate in real time for degradation of signal-to-noise ratio by vibrational, gravitational, and wind-induced deformations of antenna structure.


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    Title :

    Digital Signal Combiner For Receiving-Antenna Feed Array


    Contributors:

    Published in:

    Publication date :

    1991-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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